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【单选题】
第五套人民币5元纸币背面主景图案，在特定波长的紫外光照射下呈现（）色荧光反应。A.
黑
B.
红
C.
绿
D.
橙
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【简答题】Reading is an activity that people enjoy a lot in their free time. Some like reading newspapers and o________小题1: enjoy novels or comic(喜剧的) books. My favourite books are t________小题2:about the lives ...
【单选题】听力原文：When will the opening ceremony begin? (A) It's eight o'clock. (B) There will be eight clocks. (C) It will begin at eight o'clock. (11)
A.
B.
C.
【单选题】Books are for reading, but man must bring to their reading a desire to learn and a power of absorbing. Reading should be active, not passive. (79)When students first go to a library, they may be at a ...
A.
read as many books as he can
B.
try to read books on all the different subjects
C.
only read books on subjects that interest him
D.
read and absorb a lot
【简答题】当在一阶 RC 电路中,若 C 不变, R 越大,则换路后过渡过程越 。
【简答题】当在一阶 RC 电路中,若 C 不变, R 越 小 ,则换路后过渡过程越 。
【单选题】The ________ meeting _______ at two o'clock in the afternoon.
A.
parent's;begin
B.
parents';begin
C.
parent's;begins
D.
parents';begins
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