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【简答题】
砌体结构的构造是确保房屋结构整体性和结构安全的可靠措施，墙体的构造措施主要包括( )。 A.施工缝 B．圈梁 C．分仓缝 D．沉降缝 E．伸缩缝
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【单选题】Many children have formed the habit of reading but _____ notes meanwhile. [ ]
A.
not take
B.
not to take
C.
not taking
D.
not taken
【简答题】酶活性指在规定条件下单位时间 内( )或( ) 。酶活性单位是指一定条件下使酶促反应达到某一速度时所需要 的( ) 。
【单选题】In many places in China, the old over 90 not only by their family but also by the government.
A.
is taking good care
B.
are taken good care of
C.
is taking good care of
D.
are taken good care
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