实际晶体的结构特点是()
A.结构规则排列为主,兼有不规则排列
B.结构规则排列为主,兼有规则排列
C.结构规则排列
D.结构不规则排列
参考答案:A
A number of books ______ been stolen from the library since the beginning of this term and the number _____ as large as 500.
A.have; are
B.has; is
C.has; are
D.have; is
超短期融资券募集资金可以用于()
A.补充流动资金
B.偿还银行借款
C.用于项目投资
D.用于土地一级开发