皮皮学，免费搜题
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【单选题】
下列哪一组元素属人体必需的微量元素A.
铁、铬、硒、钙、铜
B.
氟、铁、硒、铅、碘
C.
硅、钒、铅、锌、碘
D.
铁、锰、氟、锌、碘
E.
铬、汞、锌、铜、碘
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皮皮学刷刷变学霸
举一反三
【单选题】Women do not usually get to the top in politics, but there have been a few notable ______.
A.
exceptions
B.
exclusion
C.
modifications
D.
substitutions
【单选题】Please note that our quotation is subject to your confirmation _____us here on or before the 25th this month.
A.
to reach
B.
reaching
C.
to arrive
D.
arriving
【简答题】How do the speech of women and the speech of men differ from each other?
【单选题】Please note that our offer remains open _____ a week only.
A.
for
B.
in
C.
within
D.
by
【单选题】Please note that our offer remains firm ______ ten days for your acceptance .
A.
for
B.
until
C.
in
D.
on
【单选题】关于气血屏障的错误的描述是气血屏障 ( )
A.
是肺泡与肺泡周围的毛细血管的气体进行气体交换所需要通过的结构
B.
是组织细胞与毛细血管内的气体进行气体交换所要经过的结构
C.
包括肺泡上皮、上皮的基膜、内皮的基膜和毛细血管的内皮
D.
具有一定的防御功能
【单选题】Please note that our offer remains _____ until the end of this week and we look forward to your order.
A.
fine
B.
valid
C.
best
D.
confirm
【单选题】How can women get the role of political leadership?
A.
Women must take part in national affairs through their own efforts.
B.
The government must give some convenient conditions to women.
C.
Women must be uncompromising and steady and need men's support.
D.
Men hand the power to women voluntarily for a better future.
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