净度分析所称的“PSD”是().
A.净种子
B.净种子、其他植物种子和杂质
C.净种子定义
D.净度分析
参考答案:C
A working party has been set up to ______ the financial problem of the company.
A.look up
B.look into
C.look back
D.look through
吡喹酮为( )。
A.抗疟药 B.驱肠虫药 C.抗菌药D.血吸虫病防治药 E.抗阿米巴病药