设计表明一般沟管内积泥到达1/4管径时排水量要减少()。
A.25%
B.35%
C.46%
D.54%
参考答案:C
I would appreciate if you could look after my pet while I am away.
A.you
B.this
C.it
D.myself
颅内压增高三主征是()
A.头昏、呕吐、偏瘫
B.头昏、呕吐、头痛
C.头痛、呕吐、视 * * 水肿
D.恶心、呕吐、视 * * 水肿
E.头痛、呕吐、偏瘫