岩石（石头）是在一定的地质作用下，由一种或多种矿物组合而成的

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问题多项选择题

岩石（石头）是在一定的地质作用下，由一种或多种矿物组合而成的物质。根据其成因，岩石的可分为（）。

A.花岗岩

B.岩浆岩

C.玄武岩

D.沉积岩

E.变质岩

答案

参考答案：B, D, E

阅读理解

阅读短文判断正（T）误（F）。

There's a city. Its name is Venice (威尼斯). The men and women, the old and young don't drive

cars or buses. There are no streets. Only small rivers are here and there. They look like streets.

People go to shops in boats. Your father may ride a car, a bus or a bike for work. But the fathers

there can only "ride" in boats.

( )1. People in Venice can ride cars or buses.

( )2. There are many small rivers in Venice.

( )3. You can see water here and there in the city.

( )4. People there have no bikes.

( )5. Your father may work in Venice.

多项选择题

具有促进排便作用药物是（）

A.地芬诺酯

B.硫酸镁

C.酚酞

D.乳酶生

E.乳果糖