【单选题】All the letters _____, Bethe took them to the post office.
【单选题】The couple had been trying to satisfy all the needs of their only youngster, who had been______for more pocket money all the time.
【多选题】关于Lewis血型抗体的描述,下列选项正确的是
【多选题】关于ABO血型系统抗体的叙述,正确的是______。
【单选题】关于血管外溶血,正确的是 A、常见于ABO的不同型输注
C.
多为ABO以外不同血型输注,由IgG抗体引起
【单选题】散射比浊法的特异性好于透射比浊法,其原因是
【简答题】The millions of calculations involved, had they been done by hand, ________ all practical value by the time they were finished. A) had lost B) would lose C) would have lost D) should have lost
【简答题】_________ (后来发现)the lost book had been on the bookshelf all the time.