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【判断题】
中误差即为各个观测值真误差平方的平均数的立方根。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】1) The sun is rising higher and higher , t he travelers are feeling hotter and hotter. 2) The exam is going to end in five minutes , Judy still has two essay questions left. 3) The boy wants to major ...
【单选题】在调节器作用规律中，积分作用的缺点是（）。 ①控制作用不及时 ②能减小静差 ③稳定性低 ④输出变化太慢 ⑤调节器会饱和 ⑥输出特性是直线
A.
①③⑤
B.
②④⑥
C.
①③⑥
D.
②③⑤
【单选题】听力原文：W: Good morning, Uncle Smith. M: Good morning, Cathy. W: I want to have a dinner party to celebrate my birthday. Would you come? M: I'd love to, Cathy. What time? W: Next weekend, on Saturday. M:...
A.
She liked him.
B.
She had no other friends.
C.
She wanted to have a birthday party.
【单选题】The manager wants to see changes in the company，and I am sure he will ________. (2013·陕西，24)
A.
in particular
B.
in turn
C.
in charge
D.
in time
【单选题】---I’ll have a party this evening. Will you come? ----___! I will have to visit my grandma with my parents.
A.
What a pity B. Good luck
B.
Never mind D. Not at all.
【单选题】When I return to my hometown, I will call on Mr White who taught me ten years ago. The underlined part means ______. [ ]
A.
get back
B.
give back
C.
give out
D.
go away
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