单项选择题

普通粘土砖墙的砌筑,应选用( )。
A、水泥砂浆
B、混合砂浆
C、粘土砂浆
D、石灰

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If the present state is 1000, the next state of a 4-bit up/down counter in the DOWN mode is 0111.

正确错误

答案：正确

单项选择题

Englandtied 2-2 with Germany in the first round.
A、drew
B、fastened
C、connected
D、restricted