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【单选题】
蜗杆传动的主要参数以哪个平面确定A.
蜗杆端面
B.
蜗杆轴面
C.
涡轮端面
D.
中间平面
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反馈参考答案：
举一反三
【单选题】The underlined word 'gorgeous' means ' _______ '．
A.
beautiful
B.
different
C.
important
D.
necessary
【单选题】Recycling is___________ to get rid of rubbish．A． one of the new ways B． only one wa
A.
23． Recycling is___________ to get rid of rubbish． A． one of the new ways
B.
only one way
C.
not the way ．
D.
an inadequate way
【单选题】The word 'it' means_________ in the sentence 'But not too much of it'．A．idea B．slee
A.
23． The word 'it' means_________ in the sentence 'But not too much of it'． A．idea
B.
sleep
C.
work
D.
study
【简答题】老年男性进行性排尿困难为（ ）。 查看材料
【单选题】The underlined word 'them' in the last paragraph refers to _________ ．A． oxygen mas
A.
23． The underlined word 'them' in the last paragraph refers to _________ ． A． oxygen masks
B.
doctors
C.
oxygen
D.
passengers
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