()是指甲生长的源泉。
A.甲母
B.甲根
C.甲床
D.甲弧
参考答案:A
一个长20米,宽25米,深1.2米的儿童游泳池,在它的四周和底面上抹上水泥,抹水泥的面积是多少平方米?
He climbed silently______seizing the thief______.
A.in the purpose; by surprise
B.with purpose of; surprisingly
C.with purpose of; surprisedly
D.with the purpose of; by surprise