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【单选题】
钢筋的抗拉强度实测值与屈服强度实测值的比值不应小于( )。A.
1.12
B.
1.2
C.
1.22
D.
1.25
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举一反三
【简答题】Mr Lee was in bed and was trying to go to sleep when he heard the bell ring. He turned on the light and looked at his clock. It was twelve o'clock. “ who can it be at this time of the night? " He thou...
【单选题】为确保酒店杯子清洗消毒达到标准，以下对杯子清洗消毒制度，描述不正确的是哪项（）？
A.
消毒间内应配备清洗池、消毒池各一，并作标识区分
B.
消毒间需配备合适容量的电子消毒柜和保洁柜，不得堆放与消毒无关的杂物。
C.
酒店使用的消毒药水、药片，必须符合国家卫生许可的条件
D.
客房服务员每月应使用带合适比例的消毒药水抹布和拖把清洁清洗消毒间墙面、地面、电子消毒柜以及保洁厨。
【单选题】假设需要为test_role角色授予ALTER ANY TABLE系统权限,可以使用如下()语句。
A.
GRANT ALTER ANY TABLE TO test_role;
B.
REVOKE ALTER ANY TABLE TO test_role;
C.
TAKE ALTER ANY TABLE TO test_role;
D.
ALTER DATABASE ALTER ANY TABLE TO test_role；
【简答题】根据括号内的提示或首字母填词。 1. When he came to the _________ (拐角) of the street, he turned left . 2. Do you think __________ (大象) are the largest animals on land? 3. My brother is too young to look after ________...
【单选题】I waited for him half an hour, but he never ______.
A.
turned in
B.
turned down
C.
turned off
D.
turned up
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