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【单选题】
下列过程中熵变增大的是( )。A.
一种溶质从溶液中结晶出来
B.
水蒸发了
C.
纯 C 和 O 2 反应生成 CO 2
D.
水结冰了
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【单选题】—Could you please tell me ________? —Sure. There's one near the bank. You can eat delicious food there. [ ]
A.
where is the pay phone
B.
is there a restaurant near here
C.
where the pay phone is
D.
if there is a restaurant near here
【单选题】—What's a tea house? —It's a place where you can _____. [ ]
A.
eat meals
B.
buy things
C.
drink tea
【多选题】有关气门间隙对发动机性能影响正确的是( )。
A.
气门间隙过小会导致发动机功率下降
B.
气门间隙会影响发动机的充气效率
C.
气门间隙过小会缩短进排气时间
D.
所有发动机配气机构中都必须留有气门间隙
【简答题】._______ you are leaving tomorrow, we can eat ?._______ you are leaving tomorrow, we can eat dinner together tonight. A) For B) Since C) Before D) While
【简答题】It’s important for us to be healthy．But how can we keep healthy? First，you should eat fruit and vegetables three or four times a week．Then eat sonic tofu every day because it’s good for people，both th...
【简答题】You can eat in it.
【单选题】If you want to feel full before you eat, you can ______.
A.
eat some fruit or vegetables
B.
drink a large glass of water
C.
eat some chocolate or hard candies
D.
drink some coffee or clear soup
【多选题】有关气门间隙对发动机性能影响正确的是( )。
A.
气门间隙过小会导致发动机功率下降
B.
气门间隙过大会导致发动机功率下降
C.
气门间隙过小或所短进排气时间
D.
气门间隙过大会引起气门的积碳
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