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【单选题】
When many sellers are involved in selling their products in a market, the market structure may be which of the following? i. perfect competition ii. monopolistic competition iii. monopolyA.
(i) only
B.
either (i) or (ii)
C.
(ii) only
D.
(i), (ii), or (iii)
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A.
breaking down
B.
breaking off
C.
breaking up
D.
breaking away
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A.
住小区室外给水管网和建筑内的给水管道均宜环状布置，以利安全供水
B.
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C.
内生活给水管道宜布置成枝状管网，单向供水
D.
允许间断供水的建筑，可从室外环状给水管网的不同管段引入两条引入管，在室内将管道连成贯通枝状，双向供水
【单选题】When students speak English, don’t try to correct . Let them learn to correct .
A.
them, themselves
B.
themselves, them
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them, them
D.
themselves ,themselves
【单选题】The headmaster has a particular way of_____her students nervousness when they speak.
A.
breaking down
B.
breaking off
C.
breaking up
D.
breakfing away
【简答题】Упражне́ние 选词填空。 идти́ -ходи́ть, е́хать-е́здить 2) – Вы бы́ли в воскресе́нье за го́родом? – Да, мы _______ туда́.
【单选题】In what situation will students be sent to the principal’s office? A. When they don’t finish their homework. B. When they speak out of turn. C. When they are late for class.
A.
B.
C.
D.
D
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