【C18】______A．involvingB．involvedC．containedD．containing

（1）a＋18=______＋______　　　a×15=______×______（2）m×2.5×0.4=______×（______×______）（3）（a＋b）×C=______×_____

【C18】______A．walksB．exerciseC．tripsD．housework

A．involvingB．involvedC．involve

用HPLC法分析生物碱成分，固定相采用C18色谱柱时，属于____色谱，常用的中性流动相是____溶液。

__________ 查看材料A.pursuedB.involvedC.bargainedD.avoi

I advised them to withdraw ____.A.so as to get not involvedB.so as not to get involvedC