I took my driving license with me on hol

玻璃砖隔墙工程中，玻璃砖砌体宜采用( )。

A．满口灰法

B．十字缝立砖砌法

C．嵌入法

D．卡固法

分类是化学研究中常用的方法,下列分类方法正确的是                  ( )

A．根据溶液酸碱性，将化合物分为酸、碱、盐

B．根据分散质微粒直径大小，将分散系分为胶体、浊液和溶液

C．根据化合物是否来自于有机体，将化合物分为有机物和无机物

D．根据溶液导电性强弱，将电解质分为强电解质和弱电解质

They wanted to buy some cards for their teachers, but there were _______left in the shop.

A．no one

B．nothing

C．anything

D．none

Why did the man have to be leaving

A. Because he had to go home.
B. Because he had to get up early.
C. Because he was tired.

《辛伯达航海旅行的故事》的主要内容及其所体现的时代精神是什么？