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【单选题】
听力原文:M: The competition is increasingly fierce. What shall we do next? W: If other companies lower their prices, we'll have to follow suit. Q: What does the woman suggest? (13)
A.
Producing the same suits as other companies.
B.
Doing the same as other companies have done.
C.
Fighting against others by cutting down the cost.
D.
Working out other policies to compensate for the loss.
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皮皮学刷刷变学霸
举一反三
【判断题】地西泮、氟西泮属于长效苯二氮卓类药物
A.
正确
B.
错误
【简答题】物体沿任意闭合路径运动一周时,保守力对它所作的功为 ______J
【单选题】This service should be available to everybody, irrespective __________ whether they can afford it.
A.
to
B.
for
C.
on
D.
of
【简答题】当条件具备时,结果不会发生;而条件不具备时,结果一定会发生的逻辑叫 。
【单选题】称取 0.5000g H 2 C 2 O 4 · H 2 O 基准物于锥形瓶中,加 30m L 纯水溶解,合理的操作是
A.
用量杯或量筒取 30mL 纯水
B.
用吸量管准确量取 30mL 纯水
C.
不必用量器,估计加入适量水既可
D.
将锥形瓶干燥后,用量杯加 30mL 纯水
【单选题】This service should be available________ everybody, regardless of whether they can afford it.
A.
to
B.
with
C.
in
D.
from
【简答题】所谓kernel trick,指的是:
【单选题】关于牙刷,下列哪项是错误的( )
A.
猪鬃毛牙刷较尼龙丝牙刷好
B.
儿童、老年人或牙周疾病患者宜选用刷毛较软的牙刷
C.
牙刷毛太软不能起到清洁牙面的作用
D.
牙刷毛太硬容易损伤牙齿及.牙龈组织
E.
牙刷的刷头要适合口腔的大小
【单选题】每本图书上有几条图书条形码( )
A.
1
B.
2
C.
3
D.
5
【单选题】称取铁矿石0.5000g,用酸溶解后加SnCl2,Fe3+将还原为Fe2+,然后用24.50mL KMnO4标准溶液滴定。已知1mL KMnO4相当于0.01260g H2C2O4?2H2O,问矿样中Fe的质量分数为(H2C2O4?2H2O :126.07,Fe:55.85)
A.
0.5473
B.
5.473
C.
54.73
D.
5.473%
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