【简答题】我国大铁路上使用最广、最具代表性的联锁设备是 。A. 6502电气集中联锁
【判断题】Listen to Audio Track 4-1-13. Check (✔) the statements you think Erika would agree with. We should focus on building more skyscrapers. ( )
【单选题】In view of your business amount, we would agree to meet you half way.
C.
考虑到你们的交易金额,我们同意按你们的说的办。
【简答题】All of us would agree that in order to be successful in the present-day society, we university graduates have to possess certain personal qualities that can enable us to realize our aim. What do you t...
【单选题】We all agree with you, so we hope you _____ change your idea. [ ]
【简答题】(12分) 班布特罗是一种用于治疗小儿支气管哮喘的药物。它的合成路线如下(ph—表示苯基): 回答下列问题: (1)A与过量的NaHCO 3 溶液反应的化学方程式为 。 (2)F的结构简式为 。 (3)写出满足下列条件的E的一种同分异构体的结构简式 。 ①苯的邻二取代物; ②不能与FeCl 4 溶液发生显色反应; ③水解产物能发生银镜反应。 (4)由G与X(C 11 H 17 N)发生取代反应生成...
【单选题】You would agree, we wish, ________the 10% discount we have offered.