女性,72岁,最近曾发生不明原因猝倒2次,作为一名全科医生,你应该()
A.避免外出活动
B.口服扩血管药物
C.到大医院检查猝倒原因
D.口服抗眩晕药物
E.不予理睬
参考答案:C
This is the book I bought yesterday , ______I spent 8 yuan .
A.on which
B.for which
C.in which
D.at which
通常根尖距上颌窦下壁最近的牙是()
A.上颌侧切牙
B.上颌尖牙
C.上颌第一前磨牙
D.上颌第二前磨牙
E.上颌第一磨牙