——More and more students wear glasses in our school these days.——I agree with you. Students ___ keep on doing eye exercises to protect their eyes.
A:should
B:might
C:shall
A 激烈 B 猛烈
①辩论会开始了,双方展开了____的争辩。
②敌人的炮火____,但我军仍然顽强抵抗。
小梅和同学到蒙山做植物种类的调查时,她不小心被刺了一下,立刻缩手.此时肱二头肌和肱三头肌的状态分别是( )