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【简答题】
求过点M(3, 1 -2)且通过直线 的平面方程 ;
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参考答案:
举一反三
【多选题】监视与诊断过程中的信号检测必须满足以下( )的要求。 A 随机性 B 在线性 C 实时性 D 一致性
A.
随机性
B.
在线性
C.
实时性
D.
一致性
【单选题】I was told that my father had emailed me the other day, but I didn't receive ________. [     ]
A.
it
B.
one
C.
anything
D.
nothing
【单选题】----I didn't receive any e-mail from you,why? ----( )
A.
Oh,my compuer is down.
B.
It doesn't matter.
C.
I think it's OK.
D.
Never mind.
【单选题】I was on __________ last week and didn't receive your fax.
A.
vacation
B.
vocation
【单选题】He said he had called me to return home, but I didn't receive _____. [     ]
A.
one
B.
it
C.
anyone
D.
anything
【单选题】电流表的符号是。
A.
圈A
B.
【单选题】I wrote to that company a week ago, but I didn't receive any reply.
A.
information
B.
answer
C.
word
D.
message
【简答题】Getting plenty of exercise is very important. I enjoy swimming very much. Last summer I went to the beach every day. I plan to go there this summer too, but I may not be able to, I have a new job. Som...
【单选题】I ______ a letter from him since he left. [     ]
A.
didn't receive
B.
haven't got
C.
didn't have
D.
haven't had
【单选题】I______ from him since he left. A. didn't receive B. haven't got C. didn't have D. haven't heard
A.
didn't receive
B.
haven't got
C.
didn't have
D.
haven't heard
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