柯萨奇病毒可致的人类疾病有()
A.无菌性脑膜炎
B.心肌炎
C.胸痛
D.手足口病
E.疱疹行咽炎
参考答案:A, B, C, D, E
I'd ______ the operation unless it is absolutely necessary.
A.rather not have
B.rather not to have
C.not rather had
D.rather not having
关于沸腾,下列说法中不正确的是 [ ]
A. 液体吸热后就会立即沸腾
B. 液体温度达到了沸点一定会沸腾
C. 液体温度达到沸点时继续加热,一定会沸腾
D. 蒸发和沸腾都是只在液体表面发生的汽化现象