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【单选题】
以下型号中哪项与符号QL表示的设备相同?A.
ZN3
B.
GN7
C.
FN12
D.
RW4
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反馈参考答案：
举一反三
【单选题】心室肌细胞动作电位平台期的离子基础是( )
A.
同时存在的Ca2+内流与K+外流
B.
同时存在的Na+内流与K+外流
C.
同时存在的Na+内流与Ca2+外流
D.
同时存在的Na+内流与Cl-外流
E.
同时存在的Na+内流与Cl-内流
【单选题】He is said------two trips to Chind in the last two years. (2002-24)
A.
A to be making
B.
B to make
C.
C to have made
D.
D to have been making
【单选题】He is said ____ two trips to China in the last two years.
A.
to be making
B.
to make
C.
to have made
D.
to have been made
【单选题】He is said _______ two trips to China in the last two years. (2002-24)
A.
to be making
B.
to make
C.
to have made
D.
to have been making
【简答题】2011年3月11日，日本东部沿海发生9.0级大地震。图示表示其成因正确的是
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