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【判断题】
正常情况下，NDB天线总的等效负载阻抗一般应为50Ω左右。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】简易通便法有开塞露通便法，____通便法，肥皂栓通便法等三种方法。
【单选题】Pursue not so much the material as the ideal, for ideals alone _______ life with enduring worth.
A.
invest
B.
speculate
C.
undertake
D.
include
【简答题】本次课你最大收获是什么?你觉得你的表现好吗?你认为课堂上表现最好的同学是谁?
【单选题】— Peter, please don't make so much noise. — Pardon? — I _____ make so much noise. [ ]
A.
tell you don't
B.
tell you not to
C.
told you didn't
D.
told you not to
【单选题】The digital camera cost _____ that I didn't buy it. [ ]
A.
so much
B.
so little
C.
such much
D.
such little
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