小蓟的性味归经是()
A.苦、甘、温,归心、肝经
B.苦、辛、寒,归肝、脾经
C.苦、甘、凉,归心、肝经
D.辛、甘、寒,归心、肺经
E.辛、甘、温,归肝、肾经
参考答案:C
某商品经过两次调价后,由每件5元调至4.05元,设平均每次调价的百分率为x,则可列出的方程式为[ ]
A.5(1﹣x)2=4.05
B.5(1﹣x2)=4.05
C.5(1﹣2x)=4.05
D.5(1+x)2=4.05
They always communicated with each other on the Internet, but they never met him _____________.
A.back to back
B.heart to heart
C.face to face
D.side to side