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【单选题】
一个球的表面积刚好等于底面半径为4、8的圆柱的侧面积,则该球的半径为()A.
4
B.
8
C.
2根号3
D.
2π
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【单选题】婴幼儿肺部易发生感染的主要内因应除外:( )
A.
黏膜纤毛运动差
B.
肺含血丰富,含气少
C.
肋骨呈水平位,呼吸肌不发达
D.
细胞免疫功能低下
E.
体液免疫功能差,尤其分泌型以减少
【单选题】—What a heavy rain! Will it last long? —________ .We're getting into the rainy season now. [ ]
A.
Of course not
B.
I'm afraid so
C.
That's impossible
D.
I'm afraid not
【单选题】—What a heavy rain! Will it last long, Simon? —__________. We’re getting into the rainy season now.
A.
I’m afraid so
B.
I’m afraid not
C.
That’s impossible
D.
Of course not
【单选题】----What is your new Chinese teacher like, Mary? ---Oh, ____________________________.
A.
we’re getting along quite well with him
B.
he likes playing football better than anything else
C.
he has strange ways to make his classes lively and interesting
D.
he is a handsome young man in his early thirties
【单选题】婴幼儿肺部易发生感染的主要内因应除外:
A.
黏膜纤毛运动差，肺含血丰富，含气少
B.
肋骨呈水平位，呼吸肌不发达
C.
细胞免疫功能差
D.
体液免疫功能差，尤其是SIgA减少
E.
以上都不正确
【单选题】We’re getting on very well with each other and ___ our room with him.
A.
living
B.
sleeping
C.
sharing
D.
sitting
【单选题】婴幼儿肺部易发生感染的主要内因应除外:
A.
黏膜纤毛运动差
B.
肋骨呈水平位,呼吸肌不发达
C.
细胞免疫功能差
D.
体液免疫功能差,尤其是SIgA减少
E.
肺含血丰富,含气少
相关题目：
【单选题】婴幼儿肺部易发生感染的主要内因应除外:( )
A.
黏膜纤毛运动差
B.
肺含血丰富,含气少
C.
肋骨呈水平位,呼吸肌不发达
D.
细胞免疫功能低下
E.
体液免疫功能差,尤其分泌型以减少