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【单选题】
75% 的消毒酒精是指:( )A.
100ml 水中含 75ml 酒精
B.
100 克水中含 75ml 酒精
C.
25ml 水中加入 75ml 酒精
D.
100 克水中含 75 克酒精
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【单选题】.'Can you read?' Mary said _______ to the notice.
A.
angrily pointing
B.
and point angrily
C.
angrily pointed
D.
and angrily pointing
【单选题】He has an excellent job, with an amazing car! He even owns his own flat in the City. So he's a bit of a high-flyer. So he is____.
A.
successful
B.
on airplane a lot
【简答题】在CPU中，用来暂存放数据，指令等各种信息的部件是 [2] 。
【简答题】3种组态放大器中，高频放大性能最差的是______组态，增益带宽积最大的是______组态、最小的是______组态。
【简答题】天真的.幼稚的
【单选题】Which of the following is CORRECT?
A.
The girl's friend owns a restaurant in Italy.
B.
The girl's father is sick seriously and still stays in hospital.
C.
The boy could go to Nepal as a volunteer to instruct local residents.
D.
Students cannot borrow money from financial aid for tuition.
【单选题】A vessel trawling would display______．
A.
a black ball
B.
a basket
C.
a double cone，point to point
D.
none of the above
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