【简答题】n. 前提,假定 p_____________
【判断题】化合物中H的NMR谱化学位移取决于质子的电子环境。
【单选题】精加工细长轴外圆表面时,较理想的切屑形状是( )。
【单选题】茅台酒说明书中“它保持了酱香浓郁,典雅细致,协调丰满,回味悠长等贵州茅台的特点”翻译成了“It possesses the unique style and flavor and is an extensively enjoyable drink.”关于该翻译,下面说法正确的是:
C.
译文翻译属于意译,和原文一样会给读者留下深刻的印象
【简答题】Test for a Disease. We have just received word that we have tested positive for a disease. The test was 90 percent reliable. We want to know the probability that we have the disease after we learn th...
【单选题】化合物中H的NMR谱化学位移取决于( )
【多选题】指出下列哪些二烯烃稳定性强?
A.
CH 2 =C=CHCH 2 CH 2 CH 3
B.
CH 2 =CH—CH=CHCH 2 CH 3
C.
CH 2 =CHCH 2 CH=CHCH 3
【简答题】We (apologize) for inconvenience caused by the train ’ s delay.
【简答题】为安全起见,一般情况下,泵的允许安装高度计算出来后,再取()的安全量,作为泵的安装高度。