下列规律中，明显属于经验规律的是 A．质量守恒定律 B．元

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问题选择题

下列规律中，明显属于经验规律的是

A．质量守恒定律

B．元素周期律

C．相似相溶原理

D．能量最低原理

答案

答案：C

ABD均是通过大量实验、理论推导得出的规律，而相似相溶原理是属于经验总结的规律，答案为C

选择题

— Where are the guests to be from tomorrow?

— Many an American boy and many a British girl as well as the teachers ________ to be present. [ ]

A. have been invited

B. has been invited

C. were invited

D. was invited

多项选择题

在国际旅客联运中下列可按行李办理的物品是（）

A.婴儿车

B.电视机

C.金、银制品

D.易腐产品