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【单选题】
画装配图应遵守下述基本规定:两零件接触表面画( ),不接触表面画 ( ) 。A.
两条线，两条线
B.
一条线，一条线
C.
一条线，两条线
D.
两条线，一条线
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反馈参考答案：
举一反三
【单选题】--What _______your dream home _______? -- It’s big
A.
is, like
B.
does; like
C.
is; look like
D.
does; look
【单选题】The coupon can be exchanged into an event admission ticket when submitted to the_____information center at JFK International Airport.
A.
visit
B.
visitor
C.
visiting
D.
visited
【单选题】The happiest thing for me is _______ what I know with others.
A.
share
B.
to share
C.
to decide
【单选题】下面哪项是描述氮的( )
A.
沉积型循环，其储备库主要在岩石圈和土壤圈
B.
要打破它们，变成化合物，要么被闪电所瓦解，要么被固氮细菌所固定
C.
氧化态和还原态都是重要的温室气体
D.
包括大循环和小循环
【简答题】When we think about giving help to developing countries, we often think about giving money so that these countries can build schools and hospitals, buy food and medicine, or find clean water supplies....
【单选题】吸入氧化亚氮分娩镇痛,下列哪项描述是不正确的
A.
由产妇自持麻醉面罩置于口鼻部
B.
适用于第一和第二产程
C.
镇痛效果优于硬膜外阻滞,
D.
氧化亚氮不影响宫缩和产程
E.
宫缩开始前吸入,产痛消失即移开
【单选题】—What ________ Lucy ________? — She is tall and slim.
A.
is; look like
B.
does; like
C.
does; look like
D.
does; is like
【单选题】Of all the students, she looks ______. [ ]
A.
the happiest
B.
the most happiest
C.
happiest
D.
most happiest.
相关题目：
【单选题】The happiest thing for me is _______ what I know with others.
A.
share
B.
to share
C.
to decide
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