根据客观检查手段AHA将心功能分为()。
A.四级
B.五级
C.以上都不对
D.三级
E.六级
参考答案:A
—What do you think of the meal we have just had?
—It is well worth ______ is changed for it.
A.that
B.what
C.which
D.how many
甘草和芫花(相反)合用,结果是()
A.毒性变小
B.毒性变大
C.解热作用变强
D.解热作用变弱
E.毒性和有效性不变