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【单选题】
空调系统的噪声主要来自于( ) 。
A.
机械噪声
B.
空气动力噪声
C.
机械噪声与空气动力噪声
D.
风机和风道的振动噪声
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参考答案：
举一反三
【单选题】What do most history teachers require their students to do, according to the first paragraph?
A.
They ask their students to read a lot of history books.
B.
They make their students show interest in names, dates, events, and statistics.
C.
They ask their students to take many examinations.
D.
They make students get involved in many names, dates, events and statistics, and keep them in mind.
查看完整题目与答案
【单选题】—Let me help you carry the box. —No, thanks. It’s big, __________ there is nothing in it.
A.
and
B.
so
C.
but
D.
Because
查看完整题目与答案
【单选题】Which of the following inferences CANNOT be made from the information in the first paragraph?
A.
Calhoun's experiment is still considered important today.
B.
Overpopulation causes pathological behavior. in rat populations.
C.
Stress does not occur in rat communities unless there is overcrowding.
D.
Calhoun had experimented with rats before.
查看完整题目与答案
【单选题】—This box is too heavy for me to carry upstairs.—( )( ).
A.
You may ask for help.
B.
Let me give you a hand.
C.
Please do me a favor.
D.
I'd come to help.
查看完整题目与答案
【单选题】Which of the following can be inferred about the experiment described in the first paragraph?
A.
Researchers had difficulty verifying the existence of electroreceptors in the anteater because electroreceptors respond to such a narrow range of electrical field strengths.
B.
Researchers found that the level of nervous activity in the anteater’s brain increased dramatically as the strength of the electrical stimulus was increased.
C.
Researchers found that some areas of the anteater’s snout were not sensitive to a weak electrical stimulus.
D.
Researchers found that the anteater’s tactile receptors were more easily excited by a strong electrical stimulus than were the electro receptors..
E.
Researchers tested small areas of the anteater’s snout in order to ensure that only electroreceptors were responding to the stimulus.
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【简答题】钢结构材料的强度检测主要有三种方法: 、 、和 。
查看完整题目与答案
【单选题】—Let me help you carry those books. —____________. [     ]
A.
That's very kind of you
B.
No,I can
C.
 No ,you  can't
D.
Yes , please
查看完整题目与答案
【多选题】钢结构材料的强度检测主要有三种方法
A.
取样拉伸法
B.
表面硬度法
C.
化学分析法
D.
应力应变法
查看完整题目与答案
【单选题】---Let me help you carry the box. ---No, thanks. It’s big, __________ there is nothing in it.
A.
and
B.
so
C.
but
D.
because
查看完整题目与答案
【单选题】The basket is _________. Let me carry it.
A.
light
B.
heavy
查看完整题目与答案
相关题目：
【单选题】What do most history teachers require their students to do, according to the first paragraph?
A.
They ask their students to read a lot of history books.
B.
They make their students show interest in names, dates, events, and statistics.
C.
They ask their students to take many examinations.
D.
They make students get involved in many names, dates, events and statistics, and keep them in mind.
查看完整题目与答案
【单选题】—Let me help you carry the box. —No, thanks. It’s big, __________ there is nothing in it.
A.
and
B.
so
C.
but
D.
Because
查看完整题目与答案
【单选题】Which of the following inferences CANNOT be made from the information in the first paragraph?
A.
Calhoun's experiment is still considered important today.
B.
Overpopulation causes pathological behavior. in rat populations.
C.
Stress does not occur in rat communities unless there is overcrowding.
D.
Calhoun had experimented with rats before.
查看完整题目与答案
【单选题】—This box is too heavy for me to carry upstairs.—( )( ).
A.
You may ask for help.
B.
Let me give you a hand.
C.
Please do me a favor.
D.
I'd come to help.
查看完整题目与答案
【单选题】Which of the following can be inferred about the experiment described in the first paragraph?
A.
Researchers had difficulty verifying the existence of electroreceptors in the anteater because electroreceptors respond to such a narrow range of electrical field strengths.
B.
Researchers found that the level of nervous activity in the anteater’s brain increased dramatically as the strength of the electrical stimulus was increased.
C.
Researchers found that some areas of the anteater’s snout were not sensitive to a weak electrical stimulus.
D.
Researchers found that the anteater’s tactile receptors were more easily excited by a strong electrical stimulus than were the electro receptors..
E.
Researchers tested small areas of the anteater’s snout in order to ensure that only electroreceptors were responding to the stimulus.
查看完整题目与答案
【简答题】钢结构材料的强度检测主要有三种方法: 、 、和 。
查看完整题目与答案
【单选题】—Let me help you carry those books. —____________. [     ]
A.
That's very kind of you
B.
No,I can
C.
 No ,you  can't
D.
Yes , please
查看完整题目与答案
【多选题】钢结构材料的强度检测主要有三种方法
A.
取样拉伸法
B.
表面硬度法
C.
化学分析法
D.
应力应变法
查看完整题目与答案
【单选题】---Let me help you carry the box. ---No, thanks. It’s big, __________ there is nothing in it.
A.
and
B.
so
C.
but
D.
because
查看完整题目与答案
【单选题】The basket is _________. Let me carry it.
A.
light
B.
heavy
查看完整题目与答案
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