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搜题
【单选题】
平行纺 是将一根无捻平行纤维作为芯纱，外包（） 或已经纺成的短纤维纱。A.
化纤
B.
天然纤维
C.
长丝
D.
棉条
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反馈参考答案：
举一反三
【多选题】The format of conference notices may vary, but __________ are usually included.
A.
name, date and venue of the conference
B.
sponsors and/or organizers of the conference
C.
purpose of the conference
D.
contact information
【简答题】虚级联的显著特点是健壮性（）。
【多选题】Though the format of conference notices may vary, but __________ are usually included.
A.
name, date and venue of the conference
B.
sponsors and/or organizers of the conference
【单选题】混凝土徐变会对构件产生哪些不利影响 Ⅰ．增大混凝土结构的变形 Ⅱ．使大体积混凝土表面出现裂缝 Ⅲ．在预应力混凝土构件中引起预应力损失 Ⅳ．引起基础不均匀沉降
A.
Ⅰ、Ⅱ、Ⅲ
B.
Ⅱ、Ⅲ、Ⅳ
C.
Ⅰ、Ⅲ
D.
Ⅱ、Ⅳ
【多选题】Though the format of conference notices may vary, but __________ are usually included.
A.
name, date and venue of the conference
B.
sponsors and/or organizers of the conference
C.
purpose of the conference
D.
contact information
【单选题】Some development experts feel that ______.
A.
the conference may conclude with a consensus on the problem.
B.
it will be relatively easier to solve the problem after the conference.
C.
thousands of child workers in India may die of poor work condition.
D.
the current approach to child labour problems could worsen matters.
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