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【简答题】
作为一般性公文的结构层次序数，正确的是（ ）。
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反馈参考答案：
举一反三
【单选题】Before taking out the ( ),give the engine at least one complete turn.
A.
steering gear
B.
turning gear
C.
timing gear
【简答题】Turn-taking is a characteristicof ____________.
【简答题】为了探究不同遮光和温度处理对水稻光合作用的影响,研究小组将生长发育状况一致的A品种水稻均分为6组并置于人工气室中培养,1组模拟田间环境(对照组),另5组分别如下表处理(实验组),在维持CO 2 浓度等条件与对照组相同的条件下培养一段时间,测定各组叶片的净光合速率结果如下: (注:A品种水稻光合作用的最适温度为25°C.呼吸作用的最适温度为35°C) (1)某小组研究弱光胁迫水稻光合产物向籽粒转运的...
【单选题】— How is your sister? — She _______ quite good after the operation, but she is taking a turn for the worse today.
A.
felt
B.
feels
C.
had felt
D.
has been feeling
【单选题】The central government is taking measures to the prices of daily necessities.
A.
put down
B.
turn down
C.
bring down
D.
take down
【单选题】--- Do you know the reason _________ pilots turn off the plane’s lights before taking off? ---The practice is for the passengers to adjust to the dark _________ an emergency.
A.
why; for fear that
B.
for which; in case of
C.
how; for fear of
D.
that; in case
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