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【单选题】患者女性，64岁。糖尿病病史10余年，近1年经常出现活动后心慌气短，伴有心前区疼痛，休息后可缓解。考虑该患者可能合并
A.
微血管病变
B.
周围神经病变
C.
白内障
D.
大血管病变
E.
酮症酸中毒
【简答题】正反转控制中 将接触器KM1与KM2常闭触点分别串接在对方线圈电路中,防止主电路发生两相电源短路事故,形成相互制约的控制,称为( )或( )控制。
【简答题】一个工厂由于采用新工艺，现在每件产品的成本是20.4元，比原来降低了15%．原来每件产品的成本是多少元？
【单选题】My train arrives there at eight. The plane I would like to take by then.
A.
will have left
B.
has left
C.
had left
D.
would leave
【单选题】. I’m sorry to have known my train arrives in New York at eight o’clock tonight. The plane I would like to take from there ____ by then.
A.
will have left
B.
would leave
C.
had left
D.
has left
【简答题】Tom ______ the party as no one saw him there yesterday evening. A) can't attend B) mustn't attend C) won't have attended D) couldn't have attended
【单选题】Some students can't attend ground classes because they ______.
A.
are too lazy
B.
don't have the money to study
C.
may not be able to attend classes for military reasons
D.
are sick or too busy
【简答题】为了避免正反转电路的主电路发生两相电源短路事故发生,将接触器 KM1 和 KM2 常闭触点分别串接在对方线圈电路中,形成相互制约的控制,称为 ________ 或 ________ 控制。
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