I’ll（)the exchange rate and service charge and then type up the check for you.A、 mak

A.fill out

B.look out

C.figure out

I=20.0A，在LL'平面内，求P、R、S、T四点处磁感应强度的大小。

考虑一下由以下方程式所描述的经济：

Y=C+I+G+NX

Y=5000

G=1000

T=1000

C=250+0.75(Y-T)

I=1000-50r

NX=500-500ε

r=r^*=5

a．在这个经济中，求出国民储蓄、投资、贸易余额以及均衡汇率。

b．现在G增加到1250，求出国民储蓄、投资、贸易余额以及均衡汇率的值。解释你的结果。

c．现在假设世界利率从5%上升到10%(G又是1000)，求出国民储蓄、投资、贸易余额以及均衡汇率的值。解释你的结果。

Consider an economy described by the following equations：

Y=C+I+G+NX

y=5000

G=1000

T=1000

C=250+0.75(Y-T)

I=1000-50r

NX=500-500ε

r=r^*=5

a．In this economy, solve for national saving, investment, the trade balance, and the equilibrium exchange rate.

b．Suppose now that G rises to 1,250. Solve for national saving, investment, the trade balance, and the equilibrium exchange rate. Explain what you find.

c．Now suppose that the world interest rate rises from 5 to 10 percent. (G is again 1,000). Solve for national saving, investment, the trade balance, and the equilibrium exchange rate. Explain what you find.

A.f a v o r e d

B.i n i t i a l

C.d e f a u l t

D.s t a r t up

Last year, I went WWOOFing (Willing Workers on Organic Farms) at a beautiful organic farm in La Réunion. With WWOOFing, volunteers exchange their time and work for food and accommodation. I slept in a cabin in the woods with hedgehogs(刺猬) digging about in the bushes, all different coloured birds singing in the morning and endless rows of palm trees offering shade from the sun.

For me, one of the best ways to get to know a new place is to work with the land, live with the locals and share meals together. This is why I absolutely love WWOOFing. It has got to be one of the best ways to travel. It is a mutually beneficial exchange where everyone involved prioritises people and environment above profit. You get the time and space to deepen a connection with local communities and nature.

There is a lot to learn and each farm has its own unique way of doing things, depending on the environment, climate and soil. At the farm in La Réunion we planted palm trees to harvest the core of the trunk which can be eaten in salads. Before staying with the farm I had only eaten heart of palm from cans which were nothing in comparison to the real thing, fresh from the ground. When potting up the very beginnings of the palm trees, I felt grateful to be a part of the start of the trees&39; cycle. I was filled with awe that something so small could grow into something so big and strong.

We also did lots of weeding, which helped me to get to know all kinds of different plants, to be able to identify which ones we could use as herbs/medicine/in salads and which were seen as uneatable. I also got to harvest pineapples and guava fruit(番石榴) to make jams which will be sold at the local market.

Of course, not everyone is able to travel far away into the field. The great thing about the skill-share philosophy behind WWOOFing is that it’s something we can all do from our own backyard. The focus shifts from money to how we can best support each other in our communities.

A fair exchange can make a big difference in the world.

WWOOFing enables volunteers to ________.

A.get food and shelter for their work

B.travel around La Réunion for free

C.tell the differences between various birds

D.have close contact with wild animals

The author found his farm life in La Réunion quite ______A.awful

B.rewarding

C.comfortable

D.difficult

The philosophy of WWOOFing is to _______A.improve local environment

B.make locals live better

C.unite different communities

D.advocate a fair exchange

The author did all of the following on the organic farm EXCEPT _______.A.removing weeds

B.planting palm trees

C.harvesting fruits

D.collecting vegetables

This passage is mainly about _____A.the development of WWOOFing

B.a local WWOOFing community

C.a charming WWOOFing experience

D.the system of WWOOFing

请帮忙给出每个问题的正确答案和分析，谢谢！

A.Effective communication takes a deft touch when you’re managing up.

B.Not every exchange of information with your manager has implications for productivity.

C.Whatever your manager’s preferred style. of interaction, you’ll probably need to do a little investigating to figure it out.

D.When you commit to an assignment, clearly identify what resources you need to get the job done.

colleague, to take a picnic with him

Henry: Hey. what are you doing this weekend？

Mandy: I___________yet What about you？

Henry:___________to go for a picnic？ I The weather forecast says t will be sunny this Sunday

Mandy. That's a good idea________anything？

Henry: Yes, of course, and________make some hamburgers.

Mandy OK Then r bring some drmnks, geentea. black tea. juce or cola？

Henry: How about________？ By the way.I wll bring my new kichenware for our picnic

Mandy New kitchenware？ A cooker？

Henry. Yean! 1 just bought a solar cooker last month.It's a new device that uses solar enegy and it is geting popular due to its high efficiency and its environmental friendliness. Peoplel can cook easily with this new device. I'll bring some fruit and some other food. We will lhave a wonderful picnicl.

Mandy:Wow! How amazing! I cann't wait

Henry OK I am______to our picnic.Then see you on this Sunday!

Mandy:See you!

Stock exchange is a place()stocks and bonds are bought and sold

through exchanges under rules and at regular hours.

A.that

B.which

C.where

D.when