商陆饮片的切面显（）
A.菊花心
B.星点
C.罗盘纹
D.车轮纹
E.朱砂点
参考答案：C
_______ more time, he'll make a first-class tennis player. [ ]
A. Having given
B. To give
C. Giving
D. Given
车前子具有的功效是
A．清心除烦
B．清胃止呕
C．清肺化痰
D．清热解毒
E．清热凉血
