力沿空间直角坐标轴的分解可分为直接分解法和（）法。
参考答案：二次分解法
WHO建议——耐药肺结核的治疗疗程应在痰菌阴转后继续治疗（）
A.18～24个月
B.6个月
C.12个月
D.24个月
E.3个月
If you had enough money, what _ ? [ ]
A. will you buy
B. would you buy
C. would you have bought
D. will you have bought
