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问题 单项选择题

根据《塔式起重机技术条件》的规定，塔机安装后，在空载无风状态下，塔身轴心线对支撑面的侧向垂直度为（）。

A、0.1%

B、0.2%

C、0.3%

D、0.4%

答案

参考答案：D

单项选择题

One day before my final exam, my dad gave me a gift. It completely changed my life.
On that day I had a (16) with my friends and it was a difficult time with my studies. I was unhappy. Then I noticed the gift. I (17) it and saw a DVD inside. Its name was "THE SECRET". However, I was in no mood(心情) to watch it. I sat down to study, but the (18) in my life—the fight, the sleepless nights and my poor health...Everything came to my mind. I wanted an answer but I wondered (19) there was any. Just then,I saw the DVD again. Maybe it would be helpful. I (20) my DVD player. I had no words to describe the feelings I experienced while watching it. The moving(动人的) stories of human beings made me so moved that I wouldn’t (21) any of them.
Thanks to my father’s gift "THE SECRET", I discovered (22) . Everybody has difficulties in their lives. The important thing is that you should be (23) enough to face them. Now I have started (24) my studies and my friends. And I’m in good health, too. I often hear people say, "Wow! (25) perfect life you have! \

Ⅱ. 完形填空/Cloze

A．why

B．that

C．if

D．how
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多项选择题

对常规投资项目，设基准收益率为i0，若内部收益率指标IRR＞i0，则方案（）

A.可行

B.NPV＞0

C.不可行

D.NPV＜0
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