What is necessary for your query on an existing view to execute successfully？ （）

Loran-C uses the multiple pulse system because ______．

A.Less signal energy is necessary for receiver operation

B.More signal energy is available at the receiver

C.It significantly increases the peak power

D.It increases the signal capacity

A.Keeping practicing for confidenc

B.Applying powerful visual aids.

C.Following the outline of the content.

D.Using visuals in the presentation.

A.160

B. 140

C. 120

D. 100

A.it’s a nice plac

B.I like the food ther

C.He asks me whether I like the weather.

D.It’s cold in winter and hot in summer.

132 Using the situation stated in the Special window, what is the cost performance index for Case #9？

A. 1.10

B. 1.91

C. 0.83

D. 1.20

E. None of the above

A.what

B.whether

C.that

D.when

A.that

B.what

C.whether

D.which

A.necessary

B.essential

C.dominant

D.great

We consider it necessary()tom should improve his behavior.

A. which

B. that

C. what