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【判断题】
叉车正常作业时,工作压力为9Mpa,该压力由多路换向阀中的安全卸荷阀限定。
A.
正确
B.
错误
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【简答题】活动逻辑关系中的“结束(A)—开始(B)”关系是指() A活动A不结束,活动B不能开始 B活动A结束时,活动B必须已经开始 C只有活动B开始后,活动A才能结束 D活动A结束与活动B开始必须同时进行
【单选题】活动逻辑关系中的“结束A—开始B”关系是指( )
A.
活动A不结束,活动B不能开始
B.
活动A结束时,活动B必须已经开始
C.
只有活动B开始后,活动A才能结束
D.
活动A结束与活动B开始必须同时进行
【简答题】短文改错(共10小题;每小题1分,满分10分) Yesterday afternoon I went to Yuexiu Park. It happens that I saw         76._____________ a touched . At that time, some people were boating on the lake.              77._...
【单选题】It was in Yuexiu Park _____ they dated for the first time _____ the old couple told us their story.
A.
that, that
B.
where, when
C.
that, when
D.
where, that
【单选题】Yuexiu Park is really beautiful. In fact I doubt whether Guangzhou has ____ park. [     ]
A.
a more beautiful
B.
a most beautiful
C.
the most beautiful
D.
a beautiful
【单选题】活动逻辑关系中的“结束(A)一开始(B)”关系是指( )。
A.
活动A不结束,活动B不能开始
B.
活动A结束时,活动B必须已经开始
C.
只有活动B开始后,活动A才能结束
D.
活动A结束与活动B开始必须同时进行
【单选题】The urban population of the world ______ .
A.
has risen to around forty percent in the last 200 years
B.
will have risen to more than fifty percent by the year 2010
C.
has risen by forty-five percent since 1800
D.
will live in cities for the first time
【判断题】Yuexiu Park is the largest park in downtown Guangzhou.
A.
正确
B.
错误
【单选题】活动逻辑关系中的“结束(A)---开始(B)”关系是指( )
A.
活动部结束,活动不能开始
B.
活动结束时,活动必须已经开始
C.
只有活动开始后,活动才能结束
D.
活动结束与活动开始必须同时进行
【单选题】The author suggests that in Canada during the 1950s ______.
A.
the urban population decreased rapidly
B.
fewer people married
C.
economic conditions were poor
D.
the birth rate was very high
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