志贺毒素的哪种生物活性可以解释感染该细菌后早期出现水样腹泻?()
A.神经毒性
B.细胞毒性
C.肠毒性
D.以上都是
E.以上都不是
参考答案:C
We are sparing no efforts to create ____ more peaceful and more advanced world, ____ place
where everyone enjoys his life and freedom. [ ]
A. the, a
B. a, a
C. /, the
D. the, the
国际航行的船舶的船长,必须每隔6个月向检疫机关申请一次鼠患检验,卫生机关根据检查结果实施除鼠或免于除鼠,发给除鼠证或免于除鼠证。( )