被张元素称为“易老解利法”的方剂是
A．麻黄汤
B．大羌活汤
C．加味羌活汤
D．紫葛解肌汤
参考答案：C
Look out! Don’t get too close to the house________ roof is under repair.
A．which
B．its
C．whose
D．who
何谓心电图？
