甲状腺机能亢进症患者服抗甲状腺药物，维持期约需()
A.1～3个月
B.4～6个月
C.7～9个月
D.10～11个月
E.1～1.5年
参考答案：E
We are not conscious of the extent of which work provides the psychological satisfaction that can make the difference between a full and empty life.
A．to which
B．in which
C．at which
D．by which
缺货成本指由于不能及时满足生产经营需要而给企业带来的损失，它包括( )。
A．商誉(信誉)损失
B．延期交货的罚金
C．采取临时措施而发生的超额费用
D．停工待料损失
