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【单选题】
There are some students ________ in the English lesson.
A.
are sleeping
B.
sleeping
C.
to sleep
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参考答案:
举一反三
【单选题】Many early Chinese immigrants worked in the mining industry, especially in the .
A.
copper mines
B.
silver mines
C.
coal mines
D.
gold mines
【简答题】MCS-51单片机正常工作所必须的外部硬件电路是_________、__________、________。
【单选题】听力原文:M: In the early 1860's many more Chinese arrived in California. Was there any improvement for Chinese's living conditions? F: Oh, no. This time the men were imported as work crews to construct th...
A.
in the early 1850's.
B.
in the late 1850's
C.
in the early1860's.
D.
in the late 1860's.
【单选题】玉米肉穗花序外的绿色叶状结构是
A.
苞片
B.
总苞
C.
花萼
D.
叶片
【多选题】下列药品中,不得发布药品广告的有()
A.
精神药品
B.
非处方药
C.
毒性药品
D.
医疗机构制剂
E.
麻醇药
【单选题】玉米肉穗花序外的绿色叶状结构是( )。
A.
苞片
B.
总苞
C.
花萼
D.
花瓣
【简答题】MCS-51单片机正常工作所必须的外部硬件电路是________、________、________。
【多选题】下列药品中,不得发布药品广告的有( )
A.
精神药品
B.
非处方药
C.
毒性药品
D.
医疗机构制剂
E.
麻醉药
【简答题】MCS-51单片机正常工作所必须的外部硬件电路是( )、( )、( )。
【单选题】In the early 1860's many Chinese work crews were imported to ______.
A.
be railway builders
B.
be miners
C.
do the laundry
D.
run restaurants
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