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【简答题】
为了使V带（三角带）与带槽更好地接触，轮槽角应_______于V带截面的楔角f，
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反馈参考答案：
举一反三
【单选题】_______ my teachers’ help, I wouldn’t have succeeded.
A.
Thanks to
B.
Owing to
C.
But for
D.
As to
【单选题】下列对逆转录病毒形态与结构描述不正确的是
A.
病毒颗粒呈20面体立体对称的球形,直径27nm左右
B.
病毒外层包有脂蛋白包膜,并嵌有gp120和gp41糖蛋白
C.
p24构成病毒衣壳蛋白
D.
病毒衣壳内有两条正链RNA基因组,呈双聚体形式
E.
病毒核心部分含有其进行复制的蛋白水解酶、整合酶和逆转录酶
【单选题】______ the teachers’ help, I have done well in all my subjects.
A.
With
B.
Under
C.
For
【单选题】—Jane, have you finished your paper? —No, I ________ my sister with her drawing all the morning.
A.
help
B.
helped
C.
was helping
D.
have been helping
【单选题】Presently, there are nine teachers in my team, who have ______ the task of teaching advanced English to more than 500 non-English majors.
A.
inclined
B.
hesitated
C.
afforded
D.
undertaken
【单选题】患者男性,65岁,近2个月来出现下肢麻木,行走困难,患者最可能换了那型颈椎病
A.
神经根型颈椎病
B.
脊髓型颈椎病
C.
椎动脉型颈椎病
D.
交感神经型颈椎病
E.
混合型颈椎病
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