肢体关节重着，酸痛，手足沉重，肌肤麻木不仁，苔白腻，脉濡缓，当属
A．行痹
B．着痹
C．痛痹
D．热痹
参考答案：B
—You could always put the decision off a little bit longer.
—_______If I leave it much longer I might miss my chance.
A．That's reasonable advice.
B．Isn't it a good idea?
C．Do you think so?
D．I can't agree more
金属钛（Ti）因为具有神奇的性能越来越引起人们的关注，是航空、宇航、军工、电力等方面的必备原料．已知钛原子的核内有23个质子，中子数比质子数多2个，则钛原子内微粒的总数和相对原子质量分别是（ ）
A．48、48
B．48、71
C．71、48
D．73、48
