水的硬度分()硬度与()硬度。
参考答案:暂时;永久
Joy, what happened to the plane?
It ___ at midnight, but it didn’t land on the airport on time.
A.took off
B.put off
C.turned off
D.got off
口疮心火上炎证临床可见()
A.口角溃疡为主,甚则满口糜烂
B.发热咽红,脉浮数
C.舌上舌边溃疡
D.溃疡稀散,疼痛不甚
E.小便短黄,舌尖红