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【单选题】
Jim, as well as his sisters, to talk to his parents at present because of misunderstanding.
A.
is prepared
B.
was prepared
C.
are prepared
D.
were prepared
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参考答案:
举一反三
【单选题】Which of the following processes allow(s) the transfer of bacterial DNA between different individual cells?
A.
transformation
B.
conjugation
C.
generalized transduction
D.
all of the above
E.
none of the above
【单选题】电梯封闭式井道内应设置照明,并道最高与最低()m以内各装设一灯。
A.
0.5
B.
1.0
C.
1.5
D.
2.0
【单选题】电梯封闭式井道内应设置照明,井道最高与最低处各装设一灯外,中间灯距不超过()m。
A.
7
B.
8
C.
9
D.
10
【简答题】品类创新是从竞争源头创造竞争,创造对持的局面。()
【简答题】conjugation between two or more chromophores tends to cause shifts in absorption maxima to ________________________.
【单选题】The transfer of a naked fragment of DNA between bacteria is called
A.
conjugation
B.
transformation
C.
transduction
【判断题】放大电路的本质是能量的控制与转换。
A.
正确
B.
错误
【判断题】三极管放大电路的本质是对能量的控制与转换。
A.
正确
B.
错误
【判断题】品类创新是从竞争源头创造竞争,创造对持的局面。
A.
正确
B.
错误
【单选题】电梯封闭式井道内应设置照明,井道最高与最低()m以内各装设一灯。
A.
0.5
B.
1.0
C.
1.5
D.
2.0
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