天麻钩藤饮的功用是()
A.凉肝息风,增液舒筋
B.镇肝息风,滋阴潜阳
C.平肝息风,清热活血
D.滋阴活血,息风止痉
E.凉肝息风,开窍醒神
参考答案:C
下列各式中,合并同类项正确的是[ ]
A.2x+x=2x2
B.2x+x=3x
C.5a2﹣3a2=2
D.2x+3y=5x
He ________ an egg every morning.[ ]
A. have
B. to have
C. to has
D. has