He was sweating from the（)heat.A、tenseB、intenseC、intensiveD、extensive

A.but

B.and

C.or

D.for

I used the bag to protect my face from the smoke and heat.(英译汉)

mething completely separated from heat. But this is not true. "Cold" simply means "having very little heat."

Your life depends on heat. In fact, every living thing depends on it. (28) Without heat, every living thing would be frozen to death. All living things get their heat from the sun, which provides the conditions in which life is possible.

Since the dawn of history, man has been able to make his own heat. He has been able to release the sun's heat that is trapped in things such as wood, coal and oil. And he has been able to use this heat.

Heat has made civilization possible. With heat, man could melt metals. As man learned to use metals and fuels, industries grew. As a result, engines were invented. These are machines that change heat energy into mechanical energy. Engine can do the work of many men. Without engines industrial civilization is impossible.

Yet when the first engines were built in the 17th century, men were still wondering about the nature of heat. "What is it？" they asked. Not until the early years of 19th century did they find the right answer.

In everyday usage, "hot" means______.

A．the weather is fine and it is in summer

B．one has a temperature

C．having a great deal of heat

D．having very little heat

Every human being, no matter what he is doing, ______ body heat.

A．keeps up

B．puts off

C．takes in

D．gives off

A.为中国的改革发展提供了极大的空间

B.解放了生产力，使中国强起来

C.是带有根本性、全局性、正确性的判断

D.为党制定正确的路线方针政策奠定了基础

A、集中力量办大事是中国特色社会主义的显著优势。

B、中国的基本分配制度是平均分配

C、中华优秀传统文化可促进全体人民在思想上和精神上的团结。

D、人民代表大会制度是我国施行人民民主的制度基础。

A、是企业经营的一个品牌

B、是企业经营的一种产品

C、有别于其他业务的市场竞争环境和战略

D、有企业为其配置的资源

E、有明确而独立的目标和任务