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【单选题】
关于口罩,下列说法错误的是A.
如果口罩内部或者外部变得潮湿或者脏了，需要立即更换。
B.
在口罩储量不足的情况下，N95/KN95口罩对普通人而言，可以用干净的密封袋保存重复使用。
C.
佩戴口罩前后必须清洁双手。
D.
丢弃时，普通人可以套上塑料袋后直接丢弃到其他垃圾桶内。
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【简答题】阅读理解。 People all over the world write to Big Ben. They even send birthday presents. Big Ben is not a person n. It's a clock. Big Ben is the great clock hanging up in a tower of the parliament buildi...
【简答题】Big Ben is not the name of a man. It is the name of a big clock in London. London is the capital of England. This clock has four faces. So, no matter (无论) where you stand, you can read the time on the...
【单选题】People all over the world write to Big Ben. They【C1】______send birthday presents. Big Ben is not a【C2】______. It's a clock! Big Ben is the great clock【C3】______up in a tower of the Parliament building...
A.
once
B.
usually
C.
ever
D.
even
【简答题】If you go to England, you may want to visit Big Ben. Big Ben is not the name of a man but a name of the clock in London. It has a long history of about 150 years. It is at the north end of the Palace ...
【单选题】From the first paragraph we can see that ______.
A.
Big Ben was made in 1956
B.
Big Ben had been silent many times
C.
the bells stopped ringing for two days
D.
Big Ben had been working well since 1956
【简答题】简述子宫肌瘤患者的临床表现。
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