第19题: [多项选择]流式细胞仪广泛应用于() A. 细胞生物学 B. 物理学 C. 免疫学 D. 电子学 E. 血液学 参考答案:A, C, E
第20题: [单项选择]我国A公司以海运CIF贸易术语进口一批货物,国外卖方提交的海运提单上有关“运费支付”一栏应填写( )。 A. Freight Prepaid B. Freight as Arranged C. Freight Collect D. Freight Payable at Destination 参考答案:A 答案解析:[解析] “FREIGHT PREPAID”为托运人在装运港支付运费;“FREIGHT COLLECT”为收货人在目的港支付运费。按CIF术语成交时,卖方在装运港即已支付运费,故海运单上运费的表示应为
第34题: [单项选择]Which of the following operation will have a direct impact on the rate of wear in a cylinder liner () A. amount of scavenge air to the cylinder B. quality of fuel injected C. viscosity of the lube oil D. compression ratio of the piston 参考答案:B