【单选题】【消耗次数：1】
As he had heart attack, he was told that he_____ continue
the work.
①
needn’ t
②
may not
③
mustn’ t
④
can’ t
参考答案：
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相关题目
【单选题】
18.He told me he saw it , but _____fact he wasn’t really there.
①
in point of
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【单选题】
He said he would continue a support us _____ we didn’t break the rules.
①
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②
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③
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④
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【单选题】
He didn’t keep on asking me the time any longer as he had had his watch ____.?
①
repaired ?
②
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③
repairing ?
④
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【单选题】
He was ____ in his work and didn’t hear me come in.
①
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②
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③
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④
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【单选题】
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①
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②
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③
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④
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【单选题】
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①
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②
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③
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①
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②
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④
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随机题目
【单选题】
该菌在卫生学上作为检测饮食被粪便污染的指标之一。我国饮水卫生标准规定，每100ml饮用水中，此菌不得检出，此菌的名称是（）。
①
破伤风梭菌
②
溶血性链球菌
③
金黄色葡萄球菌
④
大肠埃希菌
⑤
痢疾杆菌
【单选题】
下列符合桥式起重机控制要求的是（）。
①
由于起重机的负载力矩为位能性反抗力矩，因而电动机可运转在电动状态、再生发电状态和倒拉反接制动状态。
②
提升第二级作为预备级，是为了消除传动间隙和张紧钢丝绳，以避免过大的机械冲击。所以起动转矩不能过大，一般限制在额定转矩的一半以下。
③
为了保证人身与设备的安全，停车时可以采用安全可靠的制动方式。