A.it
B.there
C.that
D.this
[单选题]49. He missed the train this morning ______ he got up late.A. orB.ifC. butD. because
[单选题]49.—What about some drinks?—__________.A. Help, yourselfB. Good ideaC. You're welcomeD. Me,too
49.铝粉自燃时,可用( )扑救。A. 水B. 泡沫灭火器C. 干粉灭火器D. 干砂子
49.火场逃生的原则是(___)A. 抢救国家财产为上B. 先带上日后生活必需钱财要紧C. 安全撤离、救助结合D. 逃命要紧
49.我国的根本大法是()A. 宪法B. 劳动法C. 合同法D. 民法
[多选题]49.支原体肺炎()A.由肺炎支原体引起B.多见于儿童及青年C.起病缓慢,约1/3病例无症状D.咳嗽为最突出症状E.是一种急性间质性肺炎
49.犯罪的动机就是犯罪的目的。A. 正确B. 错误
[单选题]49. It's time to say goodbye to my school. I'll always remember the people ________have helped me.A.whoB.whatC.whichD.where