根据上述症状选出癃的主症()。
A.小便点滴短少
B.小便混浊如米泔水
C.小便时 * * 刺痛有血
D.小便点滴不通
E.小便有血
参考答案:A
What the doctors really doubt is__________my mother will recover from the serious disease soon.
A.when
B.how
C.whether
D.why
干粉灭火剂的特点为().(1)灭火效力大,速度快(2)无毒、不腐蚀,不导电
A.1
B.2
C.1+2