黄鱼、鲤鱼、鲫鱼等打鳞时,应()鱼鳞的走向刮。
A.顺着
B.逆着
C.先逆着再顺着
D.先顺着再逆着
参考答案:B
Jim fell off his bike and _______ his left leg.[ ]
A. hurts
B. hurted
C. hurt
D. hurting
以苯酚为原料合成对氨基苯酚的路线有()、()、()等。