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【简答题】
一个圆柱体,底面周长是94.2厘米,18厘米,它的侧面积是______平方厘米.
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参考答案:
举一反三
【单选题】已知逻辑函数£的真值表如表1.4.1所示,则逻辑函数满足( )。
A.
L=ABC
B.
C.
L=A+B+C
D.
L=AB+BC+CA
【单选题】Either Mary or he going to Paris. Only one person may go there. [     ]
A.
are
B.
is
C.
was
【判断题】The smallest organization is compoesed with only one person.
A.
正确
B.
错误
【单选题】已知逻辑函数L的波形图如图1.4.1所示,则逻辑函数满足( )。
A.
L=A⊙B
B.
C.
L=A+B
D.
L=AB
【单选题】下列哪些不属于反式作用因子( )。
A.
具有识别启动子元件功能的基本转录因子
B.
能识别增强子的转录调节因子
C.
不需要通过DNA-蛋白质相互作用就参与转录调控的共调节因子
D.
基因上游的调控序列
【单选题】She ought to stop _____ she has a headache because she _____ too long. [     ]
A.
to work, was reading
B.
to work, has read
C.
working, has read
D.
working, read
【判断题】已知逻辑函数AB=AC,则B=C
A.
正确
B.
错误
【单选题】Only one person _____ the earthquake.
A.
survived
B.
crashed
C.
solid
D.
breathed
【单选题】Only one person could use the Kinetoscope at a time.
A.
True
B.
False
【单选题】She can’t _________ a rest,or she won’t get home before 8:00 in the evening.
A.
stop having
B.
stop to have
C.
stops having
D.
stops to have
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