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问题
单项选择题 A1/A2型题
对于地方性斑疹伤寒,以下具有诊断意义的检查是()
A.血常规
B.外斐反应
C.肥达反应
D.尿常规
E.血培养
答案
参考答案:
B
选择题
He is the only one of the students who _____ a winner of scholarship for three years.
A. is
B. are
C. have been
D. has been
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选择题
计算下面各题时应用乘法分配律的是( )
A.125×8=8×125
B.125×(8×5)=(125×8)×5
C.125×(8+80)=125×8+125×80
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