把下列各数分别填入相应的集合里:+6,-3.14,143,-8.1,313,-π

题型:解答题

问题:

把下列各数分别填入相应的集合里:
+6,-3.14,143,-8.1,3
1
3
,-π,0,-2.
正有理数集合:{______…};
负有理数集合:{______…};
整数集合:{______…};
分数集合:{______…}.
考点:有理数定义及分类
题型:解答题

The train was crowded and I had to get into a carriage ______ already seven other people.    [ ]

A. when there were                          

B. which there were    

C. that there were                          

D. where there were

题型:解答题

患者,男性,30岁,因头晕、头痛、多汗、呕吐、腹痛、腹泻半小时来诊。半小时前午餐曾吃青菜和肉类。查体:呼吸18次/分,脉搏100次/分,血压120/70mmHg,多汗,瞳孔缩小,肺部偶有湿啰音,心脏无杂音,心律规则。最可能的诊断是()。

A.细菌性食物中毒

B.可溶性钡盐中毒

C.有机磷杀虫剂中毒

D.中暑

E.菌痢

题型:解答题

总收入线在支出线之上时,个人实现财务安全。()

题型:解答题

O/W型乳化剂的HLB值()

A.15~18

B.13~16

C.8~16

D.7~9

E.3~8

题型:解答题

能正思择

更多题库