蒸汽在汽轮机内的膨胀过程可以认为是（）过程。A、等温； B、等_爱下问搜题

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问题单项选择题

蒸汽在汽轮机内的膨胀过程可以认为是（）过程。

A、等温；

B、等压；

C、绝热；

D、等容。

答案

参考答案：C

完形填空

完形填空。

      1 is our classroom. It's  2  nice room. The windows  3 clean  4  the walls are white. There's a big
blackboard  5 the front wall. On the back wall there is a map. It's a map  6  China. There  7  fifty small
desks and chairs in the room. They're for us students. What's  8  the teacher desk? There are some flowers.
9  are for our teacher. We like  10 . He's a fine teacher.

( )1. A. This
( )2. A. an
( )3. A. am
( )4. A. and
( )5. A. in
( )6. A. for
( )7. A. are
( )8. A. in
( )9. A. There
( )10. A. him

B. Those
B. a
B. is
B. or
B. on
B. in
B. is
B. on
B. We
B. he

C. That
C. the
C. are
C. but
C. under
C. of
C. am
C. next to
C. They
C. his

单项选择题

成本逼近法中，在计算土地增值收益的时候，不用考虑的是( )。

A．投资利息

B．投资利润

C．开发费用

D．均不是