【单选题】It can be inferred from the passage that in some countries ______ .
A.
it is common to wait for an hour for an appointment
B.
explanations for being late are cut short
C.
apologies are never made for being late
D.
people are irresponsible
【单选题】I can _____ the violin . I like _____ the violin. [ ]
【判断题】车用无铅汽油10%蒸发温度决定其低温启动性和形成气阻的倾向。
【单选题】In some cities it is very difficult to have a telephone _____ , and people have to wait a long time before they can get a phone.
【单选题】I’m really tired_____Tom . He had me _____for two hours in the rain . A.of, waitingB.with , wait
A.
14. I’m really tired_____Tom . He had me _____for two hours in the rain . A.of, waiting
【单选题】Last year, I liked playing volleyball, but now I get used to ______. [ ]
【单选题】串行异步通信的实现必须做到()
B.
一块数据传送结束时,用循环冗余校验码进行校验
C.
以字符为传送信息的单位,按约定配上起始位、停止位和校验位
【多选题】关于消费者均衡点的下列看法中正确的有
B.
消费者均衡点在理论上可以脱离预算约束线而存在
D.
在消费者均衡点上,预算约束线与无差异曲线斜率相等但符号相反
E.
在消费者均衡点上,预算约束线与无差异曲线斜率相等且符号相同