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【单选题】
以下不属于静电危害的是( )。(1分)加油!必过!
A.
爆炸或火灾
B.
电击
C.
妨碍生产
D.
静电除尘
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参考答案:
举一反三
【简答题】Once there was a piano player in a bar. People came just to hear him play. But one night, a girl asked him to sing a song. “ I don ’ t sing, ” said the man. But the girl told the waiter, “ I ’ m tired...
【单选题】谢才系数 C 与沿程水头损失系数 的关系为
A.
C 与  成正比
B.
C与1  成正比
C.
C 与 2 成正比
D.
C与 成正比
【单选题】谢才系数 C 与沿程水头损失系数 l 的关系为
A.
C 与 l 成正比
B.
C 与  1 / l 成正比
C.
C 与 l的平方 成正比
D.
C 与 成正比
【简答题】Two Americans were traveling in Spain. One morning they came into a little restaurant for lunch. They did not know the native language and their waiter did not know theirs, either. They wanted their w...
【单选题】Then he came into a wine-shop at sunset. He ordered some dishes, including fried shelled shrimps. After that, he suddenly remembered the tea leaves taken from the cottage, and asked the waiter to ( ...
A.
make
B.
made
C.
take
D.
took
【简答题】Once there was a piano player in a bar( 酒吧 ). People came just to hear him play. But one night, a lady asked him to sing a song. "I don't sing," said the man. But the lady told the waiter, "I'm tired ...
【多选题】下列项目中,通常属于酌量性固定成本的是( )
A.
广告费
B.
固定资产折旧费
C.
研究开发费用
D.
职工教育培训费
【单选题】下列哪个器官是物质代谢的枢纽
A.
B.
C.
D.
E.
脊髓
【简答题】She’s _________ to help us no matter when. 2. Robert asked the waiter to _________ him the check. 3. I’m sorry, I’ve ___________ your name. 4. You must ___________________ everyday English. 5. Will yo...
【单选题】谢才系数 C 与沿程水头损失系数 l 的关系为
A.
C与 l 成正比
B.
C与1 / l 成正比
C.
C与 成正比
D.
C与成 正比
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