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【简答题】
平面机构中每个低副引入的约束为_______,每个平面高副引入的约束数为________。
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反馈参考答案：
举一反三
【单选题】On May 12th, many parts of Sichuan were struck by an earthquake, from__________ effects the people are still suffering.
A.
that
B.
whose
C.
those
D.
what
【单选题】下列有关台湾的叙述不正确的是 [ ]
A.
台湾海峡鱼类丰富
B.
台北是全岛最大的城市，也是最大的海港
C.
享有“水果之乡”的美名
D.
山区为林区，也是亚洲有名的天然植物园
【单选题】A is a word formed by combining parts of other words
A.
blend
B.
coinage
C.
acronym
D.
clipped word
【单选题】A word formed by combining parts of other words is called a ________.
A.
compound
B.
coinage
C.
clipped word
D.
blended word
【单选题】The word 'subjects' in the sentence of Paragraph 5 'Contraction of front and side parts—as cells die off— was observed in some subjects in their thirties, but it was still not evident in some sixty- a...
A.
something to be considered
B.
branches of knowledge studied
C.
any member of a state except the supreme ruler
D.
persons chosen to be studied in an experiment
【单选题】The shaft and spare parts _____ should be well greased in order to avoid corrosion.
A.
in the store room
B.
in the cylinder
C.
in the scavenge air box
D.
in the water box
【单选题】Which of the following words is a blend, a word formed by combining parts of others?
A.
Disco.
B.
Laser.
C.
Motel.
D.
AIDS.
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