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【单选题】
Cell differentiation is a process in which a generic cell develops into a specific type of cell in response to specific triggers from the body or the cell itself. This is the process which allows a single celled zygote to develop into a multicellular adult organism which can contain ( ) of different types of cells in human body.
A.
millions
B.
thousands
C.
dozens
D.
hundreds
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参考答案:
举一反三
【单选题】She is quite familiar with the movie because she____it twice.
A.
has seen
B.
saw
C.
will see
D.
was seeing
【单选题】以下植物为花叶同放型的是( )
A.
白兰
B.
白玉兰
C.
碧桃
D.
四季桂
【简答题】MQN 气敏电阻可测量 , TiO 2 气敏电阻可测量 。
【判断题】玉兰为花叶同放的植物
A.
正确
B.
错误
【多选题】MQN气敏电阻可测量 的浓度,TiO 2 气敏电阻可测量 的浓度。
A.
CO2
B.
N2
C.
气体打火机车间的有害气体
D.
锅炉烟道里剩余的氧气
【单选题】决定巴比妥类药物作用时间长短的因素是( )。
A.
5位取代基的水解
B.
5位取代基的氧化
C.
5位取代基的硝基化
D.
5位取代基的羟基化
E.
5位取代基的异构化
【单选题】配置单区域OSPF,启动OSPF路由选择进程的命令是在全局配置模式下输入 router ospf + 进程ID,其中进程ID号的范围为:
A.
1~65535
B.
0~1024
C.
0~64
D.
0~32
【单选题】The movie is ______ on a real story in life, so it is quite moving.
A.
basing
B.
based
C.
coming
D.
written
【单选题】Whichof the four comments is quite strange?
A.
The movie made you think. It wasthought-provoking.
B.
The actor is predictable.
C.
The camera angles and shots lacked variety.
D.
The character development is strong/ not sostrong.
【单选题】元器件石英晶体振荡器的封装是()。
A.
DIP
B.
SIP
C.
AXIAL
D.
XTAL1
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