法洛四联症患儿要注意保证入液量，防止脱水的目的是（）
A.防止便秘
B.防止休克
C.防止血栓栓塞
D.防止心力衰竭
E.防止肾衰竭
参考答案：C
We must make sure that public facilities in the newlybuilt buildings,like the restroom and the lift,
are________to disabled visitors. [ ]
A. impressive
B. independent
C. remarkable
D. accessible
Some researchers believe that there is no doubt______a cure for AIDS will be found. [ ]
A. which
B. what
C. that
D. whether
