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【判断题】
防盗系统的报警方式有灯光闪烁、警笛长鸣、发射电波报警。()A.
正确
B.
错误
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【简答题】English into Chinese Picasso’s time in Madrid, however, came to a sudden end. At the beginning of June he contracted scarlet fever and had to return to Barcelona to get better. Hardly had he arrived, ...
【单选题】动脉血氧分压的描述错误的是
A.
正常值35～45mmHg
B.
正常值80～100mmHg
C.
是判断缺氧程度的指标
D.
小于60mmHg作为诊断呼吸衰竭的实验室指标
E.
60～80mmHg提示轻度缺氧
【单选题】某套利者卖出4月份铝期货合约,同时买入5月份铝期货合约,价格分别为16670元/吨和16830元/吨,平仓时4月份铝期货价格变为16780元/吨,则5月份铝期货合约变为()时,价差是缩小的。
A.
16970
B.
16980
C.
16990
D.
16900
【单选题】The doctor warned his patient that ____ should he return to work until he had completely recovered
A.
on all accounts
B.
on no account
C.
in any time
D.
in no time
【单选题】某套利者卖出4月份铝期货合约，同时买入5月份铝期货合约，价格分别为19670元/吨和19830元/吨，平仓时4月份铝期货价格变为19780元/吨，则5月份铝期货合约变为()元/吨时，价差是缩小的。
A.
19970
B.
19950
C.
19980
D.
19900
【单选题】Charlie had to return to his office for his handbag, ______he?
A.
hadn't
B.
didn't
C.
had
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