【单选题】Dad ______ a lot of alcohol, but now he has given that up and ______ soft drinks.
A.
used to drink; is used to drinking
B.
was used to drinking; used to drink
C.
used to drink; used to drinking
D.
was used to drink; is used to drink
【单选题】男,75岁,吸烟30年,每日一包。查体:双肺叩诊过清音,肺功能:重度阻塞性通气障碍。其语音震颤的特点是
【单选题】下图中,“—”表示相连的物质间在一定条件下可以发生反应,“→”表示甲在一定条件下可与某种物质反应生成丙。下表四组选项中,符合下图要求的是 [ ] 甲 乙 丙 丁
A.
BaCl 2 CuSO 4 NaOH HCl
【单选题】Research suggests that fast food and soft drink directly _________ to childhood obesity.
【单选题】男,75岁,吸烟30年,每日一包。查体:双肺叩诊过清音。肺功能示重度阻塞性通气功能障碍,其语音震颤的特点是
【简答题】下列单体在一定条件下能发生加聚反应生成 的是
【简答题】A.We should drink more hard water. B.We should drink mere soft water. C.Ground water is good for the elderly people. D.Ground water has to be, treated before we drink it.