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【单选题】
《中国药典》(2015年版)关于溶解度的规定,是指( )。A.
溶质1g(mL)能在溶剂不到1mL中溶解
B.
溶质1g(mL)能在溶剂1mL至小于10mL中溶解
C.
溶质1g(mL)能在溶剂10 mL至小于30 mL中溶解
D.
溶质1 g(mL)能在溶剂30 mL至小于100 mL中溶解
E.
溶质1 g(mL)能在溶剂100 mL至小于1000 mL中溶解
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举一反三
【简答题】道路立体交叉按交通功能可分为:____、____。
【简答题】Recently people have made great progress in using ______ power of nature to produce ______ electricity. A．a; the B．/ ; / C．the; / D．a; an
【简答题】For this part, you are allowed 30 minutes to write a short essay entitled Should Electricity in the Dormitory Be Cut Off after Midnight? You should write at least 120 words following the outline given...
【单选题】The heat that is produced by burning garbage can be used to______.
A.
make electricity
B.
make energy source
C.
boil water
D.
save coal
【单选题】The process of producing electricity may also give out CO 2 , _____ you heat your house with electricity instead of charcoal. [ ]
A.
even if
B.
as long as
C.
as if
D.
as soon as
【简答题】立体交叉按交通功能的不同可分为 ____、 ____,按与相交道路跨越方式的不同可分为 ____、 ____。
【简答题】在道路的立体交叉中,按交通功能划分,立体交叉可以分为分离式和( )式。
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