下列哪个是数据链路层的数据传输设备（） A.网卡 B.网桥 C.网关 D.路由器

Phrase-filling (5%)

consist of ;   take up;   fall on;   feel guilty about;   stick to

小题1:A medical team which________ 3 doctors and 10 nurses has marched to the front.
小题2:Though he went through a lot of hardships, he still ________ his dreams.
小题3:Once _________ the occupation of teaching, you will have to devote much time and energy.
小题4:She _________ the divorce from her husband, but now she has got out of the shadow.
小题5:National Day ________ a Monday last year.