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【单选题】
下列不是女性生殖器官邻近器官的是A.
膀胱
B.
尿道
C.
输尿管
D.
结肠
E.
直肠
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反馈参考答案：
举一反三
【单选题】Although he has lived with us for years, he _______ us much impression.
A.
hadn’t left
B.
didn’t leave
C.
doesn’t leave
D.
hasn’t left
【单选题】Although he has lived with us for years, he ______ us much impression.
A.
hadn’t left
B.
didn’t leave
C.
doesn’t leave
D.
hasn’t left
【单选题】A diesel engine with a combustion chamber located between the crowns of two pistons is known as a/an _____.
A.
double-acting engine
B.
opposed pistons engine
C.
single-acting engine
D.
horizontal acting engine
【单选题】Pistons for modern engines are made of _______.
A.
cast iron
B.
steel
C.
aluminum-alloy
D.
tin-alloy
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