【多选题】
In his spare time, he often _______.
①
A.speak English
②
B.rides a bike
③
C.cycles
④
D.goes cycling
【单选题】
23. Realizing that he hadnt enough money and ______ to borrow from his father, he decided to sell his watch.
①
not wanted
②
not to want
③
not wanting
④
. wanting not
【单选题】
His parents did not approve of his plan to go and study abroad with a girl they had never met, but he ____ and married her.
①
went against
②
went for
③
went for nothing
④
went ahead
【单选题】
CD8+T细胞杀伤靶细胞
①
要识别MHCⅠ类分子上的肽类
②
需要替代途径活化补体
③
要识别MHC Ⅱ类分子上的肽类
④
通过Fc受体与包被了抗体的靶细胞结合
⑤
一个CD8+T细胞只杀伤一个靶细胞
【单选题】
____ before, his first performance for the amateur dramatic group was a success.
①
Though having never acted
②
As he had never acted
③
Despite he had never acted
④
In spite of his never having acted