According to the passage, all the following may cause damage to the sea EXCEPT
A. sewage
B. pesticides
C. detergents and fertilizers
D. plankton which cover bathers with itchy slime
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每一机构投机者持有的单一券种买断式回购未到期数量累计不得超过该证券券种发行量的20%。 ()
A. 正确
B. 错误
深证证券交易所规定,每一申购单位为1000股,申购数量不少于1000股,超出1000股的必须是1000股的整数。 ()
A. 正确
B. 错误
在本地报关的出境货物,经检验检疫合格后,签发三联《出境货物通关单》。()
A. 正确
B. 错误
4-n □ 6
4-n □ 5
Which of the following symbols should be substituted for □ to make both of the statements above true for all integers n such that -2<n≤3 ?
A. ≤
B. <
C. =
D. >
E. ≥