血容量不足
A.中心静脉压低,动脉压低B.中心静脉压低,动脉压正常C.中心静脉压高,动脉压低D.中心静脉压高,动脉压正常E.中心静脉压正常,动脉压低
参考答案:A
Mr Smith was having a meeting at that time; otherwise he _________ over to help us. [ ]
A. would have come
B. would come
C. had come
D. was going to come
陈丰是从外地转学来的学生,原来他的学习成绩还不错,但现在他一上课就发呆。由于他乡音较重,一到回答问题时,舌头就打结。刚开学没多久,他就受不了了,可内向的他,又不敢于向人倾诉,于是整日在痛苦中煎熬。这说明[ ]
A、陈丰是一个智力有缺陷的人
B、新环境不接纳陈丰
C、陈丰的道德修养差
D、陈丰对新环境的适应能力差