【简答题】在海军节开幕式上,有A、B、C三艘军舰要同时开始鸣放礼炮各21响。已知A舰每隔5秒放一次,B舰每隔6秒放一次,C舰每隔7秒放一次,假设各炮手对时间的掌握非常准确,请编程计算观众总共可以听到几次礼炮声。
【单选题】______ me most was that the young girl who had lost both arms in an accident could write with her feet.
【单选题】为了减小分子扩散对峰宽的影响,宜选择 为载气。
【判断题】杜甫是我国文学史上诗作留存最多的大诗人。
【单选题】下列对Hyper-V工作层次的理解,正确的是:
【单选题】听力原文:M: Is the girl who had the accident in a serious condition? W: I'm afraid she is, but they've kept the news from her mother. Q: Which statement is true? (13)
A.
The girl's mother knows about her condition.
B.
the girl's mother has had an accident.
C.
The girl's mother doesn't know of her condition.
D.
The girl's mother had received the news.
【单选题】听力原文:M: Is the boy who had the accident in serious condition? W: I'm afraid he is, but they've kept the news from his mother. Q: Which of the following statements is correct? (17)
A.
The boy's mother has had an accident.
B.
The boy's mother doesn't know of his condition.
C.
The boy's mother is in serious condition.
D.
The boy's mother has received the news.
【多选题】银量法测定苯巴比妥的含量,需要用到的试剂包括 ()
【单选题】党的十九大报告指出坚持全面从严治党必须以党章为根本遵循把______摆在首位思想建党和制度治党同向发力统筹推进党的各项建设。
【单选题】Evidence came up ______ the old man was the very person who had killed the little girl.