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【单选题】
铅中毒的主要表现是A.
白细胞减少
B.
红细胞减少
C.
血小板减少
D.
血红蛋白减少
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举一反三
【简答题】请填写英文。 The name of letter-head is the name of ( ).
【单选题】Chapter5: Why did the author refer to the letter written by the head of the radio department
A.
To illustrate that the head was very authoritative and admired by his people.
B.
To illustrate that most people fail to see things from other person’s point of view.
C.
To illustrate that if you can not write a good letter to your employee, you will not succeed in winning their heart.
【简答题】The name of letter-head is the name of ( ).
【单选题】Is the letter head of the sender's or the receiver's?
A.
the sender's
B.
the receiver's
【简答题】生产矿井主要通风机必须装有反风设施，并能在多长时间内改变巷道中的风流方向?
【单选题】All the workers ____ together and wrote a letter to the head of the company.
A.
got
B.
put
C.
took
【简答题】生产矿井主要通风机必须装有反风设施，并能在( )min内改变巷道中的风流方向。 A 2 B 3 C 10
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