最凶险的疟疾是()
A.间日疟
B.脑型疟
C.卵形疟
D.三日疟
E.肾型疟
参考答案:B
— Let's clean the desks and chairs.
— _________________[ ]
A. They are desks and chairs.
B. All right.
C. You are right.
如何进行培训需求分析。