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【单选题】
实验室安全守则中规定,严禁任何()入口或接触伤口,不能用()代替水杯。A.
食品、烧杯
B.
药品、玻璃器皿
C.
药品、烧杯
D.
食品、玻璃器皿
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举一反三
【单选题】'The world catches you up' ( Para 3 ) means that you are trying to achieve the impossible things by trying to be free.
A.
Y
B.
N
C.
NG
【单选题】It's good ______ you to keep ______ when you have something difficult ______. [ ]
A.
for; trying; to do
B.
of; trying; doing
C.
for; to try; to do
D.
of; trying; to be done
【单选题】硬盘驱动器 的缺点是()
A.
全封闭，耐震性好，不易损坏
B.
不易碎，不象显示器那样要注意保护
C.
耐震性差，搬运时要注意保护
D.
不用时应套入纸套，防止灰尘进入
【单选题】If you are desperately trying to get a job, you are ____.
A.
trying very hard to get it
B.
caring little whether you get it or not
【单选题】If you are desperately trying to get a job, are you ( )?
A.
trying very hard to get it
B.
caring little whether you get it or not
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