有关肝昏迷发病机制说法错误的是()
A.胺或苯乙醇胺取代了正常的神经递质
B.芳香族氨基酸减少
C.支链氨基酸减少
D.硫醇增多
E.短链脂肪酸增多
参考答案:B
A number of new houses _____ in Wenchuan last year. [ ]
A. built
B. are built
C. were built
D. will be built
“从泵到泵”输送方式中,各占的输量()。
A.不相同
B.单独可调
C.自行调节
D.相同