The manager or his assistant _____ planning to go. [ ]
A. was
B. are
C. were
D. be
答案:A
货币政策主要由以下政策构成:()。
A.信贷政策
B.利率政策
C.经济政策
D.外汇政策
从土壤磷素养分在土壤中的转化,可归纳出()二点转化结论,是施用磷肥应考虑的基本原则
A.磷易固定
B.移动性小
C.磷易淋失
D.磷易挥发