地震属于( )。A.确定性振动 B.随机振动 C.非周期振动 D.瞬态振动

题型:单项选择题

问题:

地震属于( )。

A.确定性振动

B.随机振动

C.非周期振动

D.瞬态振动

考点:资产评估师机电设备评估基础机电设备评估基础
题型:单项选择题

在相同操作条件下,多效蒸发与单效蒸发相比,其()。

A.温度差损失较小,单位蒸汽消耗量较小

B.温度差损失较小,单位蒸汽消耗量较大

C.温度差损失较大,单位蒸汽消耗量较小

D.温度差损失较大,单位蒸汽消耗量较大

题型:单项选择题

Once there was a man traveling in a faraway village. As he was passing the elephants, he suddenly stopped. He found that these huge elephants were being held by only a small rope tied to their front leg. No chains(锁链), no cages. It was clear that the elephants could, at any time, break away from their ropes but for some reason, they did not.

He saw a trainer nearby and asked why these animals just stood there and didn’t try to get away. “Well,” the trainer said, “when they are very young and much smaller we use the same size rope to tie them and, at that rage, it’s enough to hold them. As they grow up, they still believe they cannot break away. They believe the rope can hold them, so they never try to break free.”

How could it be? These animals could at any time break free from their ropes. But because they always stuck right where they were, they believed they couldn’t.

Just like the elephants, how many of us go through life believing that we cannot do something, just because we failed at it once before?

___________________. We should never give up the struggle(挣扎) in life.

根据材料内容选择正确答案。

小题1: What did the writer see in the village?

A.Chains

B.Elephants

C.Cages

D.Farmers小题2:Why do the elephants never try up to break free from the ropes?

A.Because they think they can not.

B.Because they are too old to do it.

C.Because they like their living places.

D.Because they get on well with the trainer.小题3:How did the man feel after he heard what the trainer said?

A.Moved

B.Surprised

C.Angry

D.Nervous小题4:Which of the following is the missing part in the last paragraph?

A.Failing is part of learning.

B.We should be different from others.

C.Helping animals is helping ourselves.

D.Traveling always makes people relaxed.小题5:What is the best title for this test?

A.Pleasant trip

B.A Cruel Trainer

C.Elephant Training

D.The Elephant Rope

题型:单项选择题

()是由于项目存在众多参与方,因各方的动机和目的不一致导致项目合作的风险,影响项目的进展和项目目标的实现。

A.组织风险

B.技术风险

C.市场风险

D.管理风险

题型:单项选择题

力士香皂的广告语是国际著名影星娜塔莎金斯的一句话“我只用力士”。上海利华公司对此广告语的广告效果进行市场研究。问题:

此项调查一般可采用哪些形式进行

题型:单项选择题

霉变粒是玉米的卫生指标之一,它的限量是≤2.0%。

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