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【多选题】
软糖在保存期可能出现的质变包括( ) 。A.
发烊
B.
返砂
C.
发霉
D.
脱水收缩
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反馈参考答案：
举一反三
【简答题】____工作研究包括方法研究与作业测定两大技术。
【单选题】This is our best price, ______ which we have concluded many orders with other buyers in your city.
A.
on
B.
for
C.
by
D.
at
【单选题】We have helped the animals in danger _______ it has still a lot of things to do . [ ]
A.
so
B.
and
C.
but
【简答题】简述 体育赛事经纪的结构 。
【单选题】滴定管的读数,下面哪个操作正确( )
A.
滴定管中装满或放出溶液后，使附着在内壁的溶液留下后可读数
B.
滴定管内溶液为无色读数时事先以液面两侧的最高点相切
C.
滴定管的液体为浅色，读数时视线与凹液面最低点相切，
D.
滴定管内液体为有色，读数应与凹液面最低点相切
【简答题】构件在大偏心受拉情况下构件全截面受拉,这个说法正确吗?为什么?
【单选题】We are happy to have concluded business with you, our work was not wasted. The time-taking negotiations were ().
A.
worthwhile
B.
worth our while
C.
worthy
D.
worth while
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