我国流行的肾综合征出血热最主要的传染源是()
A.家鼠
B.黑线姬鼠
C.棕背鼠
D.田鼠
E.红背鼠.
参考答案:B
The thought of going back home was ___kept him happy while he was working abroad.
A.that
B.all that
C.all what
D.Which
在教学进程中对学生的知识掌握和能力发展进行的评价是
A.诊断性评价
B.总结性评价
C.形成性评价
D.相对性评价