()可影响钙和磷的兼容性。
A.湿度
B.温度
C.长期存储
D.日光暴晒
E.PH
参考答案:B
The Smiths all over the country. So they plan foreign countries. [ ]
A. have traveled; visit
B. traveled; to visit
C. traveled; visiting
D. have traveled; to visit
必须与其他查询相结合使用的查询是( )。
A.联合查询
B.传递查询
C.数据定义查询
D.子查询