题目内容

钩端螺旋体病

A. 针对传染病流行的“三环节”的措施
B. 以接种疫苗为主的综合措施
C. 加强疫情和病毒变异的监测
D. 以消灭传染源为主的综合措施
E. 切断传播途径为主的措施预防和控制

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My wife has three brothers, all ()than she. () , George, is an officer.

A. elder---The eldest
B. older---The oldest
C. elder---The eld one
D. older---The oldest

客户信用证券账户不得买入或转入除担保物和交易所规定标的的证券范围以外的证券，不得用于从事交易所债券回购交易。（）

28 When a large star explodes, the gravity compacts every piece into ______.

The seller should lodge any claim for this consignment against the sellers () 30 days ()arrivalof the goods.

A. within; in
B. within; at
C. after; in
D. after; on