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【单选题】
在某溶液中加入酚酞和甲基橙各一滴,显黄色,说明此溶液是 ( ) 。A.
不能确定
B.
酸性
C.
中性
D.
碱性
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【简答题】A young boy was sitting in the back seat of the car eating an apple. He asked his father, “Why does my apple turn brown?” his father answered, “When the skin is removed, air reaches the flesh of the a...
【单选题】The boy was sitting on the floor ______ by toys. [ ]
A.
fsurrounded
B.
surrounding
C.
surroundings
D.
surround
【多选题】在坚持公有制主体地位和国有经济主导地位的同时,必须发展多种所有制经济,这是因为( )。
A.
发展多种所有制经济是由国有经济的支配地位决定的
B.
发展多种所有制经济是由鼓励、支持和引导非公有制经济发展决定的
C.
发展多种所有制经济是由我国目前生产力状况决定的
D.
发展多种所有制经济是建立和完善社会主义市场经济体制的要求
【简答题】当 A s ′ 已知时，应当如何求 A s ？
【简答题】The boy was sitting _____ hismother, _____ his back _____ the door. A. nextto…with…to B. nearly…of…against C. closeto…with…on D. near…in…towards
【简答题】A young boy was sitting in the back seat of the car eating an apple. Hw asked his father, “Why does my apple turn brown?” His father answered,”“When the skin is removed, air reaches the flesh of the a...
【单选题】The boy was sitting ___ his mother, ___ his back ___the door. [ ]
A.
next to; with; to
B.
nearly; of; against
C.
close to; with ;on
D.
near; in; towards
【简答题】The boy was sitting _____ Tina, so she couldn't see the film clearly.
【单选题】. The boy was sitting at the desk, ______ hard when his mother got home.
A.
to pretend to work
B.
to pretend to be working
C.
pretending to work
D.
pretending to be working
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