已知直线l⊥AB,l⊥BC,则直线l与AC所成角的大小为 ______.

题型:填空题

问题:

已知直线l⊥AB,l⊥BC,则直线l与AC所成角的大小为 ______.

考点:直线与平面垂直的判定与性质
题型:填空题

A client takes prednisone for an acute exacerbation of her rheumatoid arthritis. The nurse teaches the client about how to take this drug. Which of the following statements by the client indicates that the education is effective

A. "I can stop taking the prednisone as soon as my joints feel better. "
B. "It is important for me to increase my sodium intake while I am taking this medication. "
C. "I should not be concerned if I lose a little weight while I take the prednisone. "
D. "It is best if I take this medication with some food. "

题型:填空题

甲没有合法依据却取得了乙的财产,在甲被人民法院受理破产案件后,乙应该按照不当得利返还请求权申报破产债权。( )

题型:填空题

测定氮元素的ARL-MA及ARL4460光谱仪采用()真空系统,由初级泵()和次级泵()组成。其中()的转速达()转/分钟,其完全停止需要5分钟以上的时间。

题型:填空题

瘢痕性幽门梗阻突出的临床症状是

A.呕吐频繁伴消瘦无力
B.上腹部膨隆
C.呕吐大量酸臭味的隔日所进食物
D.上腹可见胃型及蠕动波
E.有长期溃疡病史

题型:填空题

穆时英的小说代表作是()。

A.《篱下》

B.《寒夜》

C.《水葬》

D.《白金的女体塑像》

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