[单项选择]We have lodged a claim ______ the seller for the shortage of shipment ______ S. S. DONGFENG. A. against, ex B. with, under C. on, as per D. with, to
第3题:[单项选择]<br><br><br/>A.reason<br/>B.doubt<br/>C.way<br/>D.problem<br/>参考答案:A 答案解析:本题的句型结构很重要。There is no reason to do:做……没有理由。There is no doubt about sth.: there is no doubt that...:
第4题: [单项选择]自动分析仪中采用同步分析原理的是( ) A. 离心式自动生化分析仪 B. 分立式自动生化分析仪 C. 连续流动式自动生化分析仪 D. 干化学式自动生化分析仪 E. 高效液相层析仪 参考答案:A