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【单选题】
在气压系统中,压缩空气中通常都含有水分,油分和粉尘等杂质,其中( )会使管道、阀和气缸腐蚀。
A.
水分
B.
油分
C.
粉尘
D.
以上都有可能
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参考答案:
举一反三
【单选题】可进行造血干细胞采集的时机为外周血中 CD34+ 细胞的数量达到:
A.
(20~40) x 106/L
B.
(20~40) x 105/L
C.
(20~40) x 107/L
D.
(2~4) X 106/L
E.
(2~4) x 105/L
【简答题】语言是人类最重要的交际工具和思维工具,那么除了语言,还有那些交际工具?
【单选题】The author's purpose in writing the passage is ______. ( )
A.
to help children to gain a better understanding of animal life
B.
to prove that the saying 'a rolling stone gathers no moss' is wrong
C.
to introduce a particular animal to the common reader
D.
to discuss with professionals the laziness of animals
【单选题】Which group of children has a bias when choosing musical instruments?
A.
Children who have private music tutors.
B.
Children who are 8 or older.
C.
Children who are between 5 and 7.
D.
Children who are well-educated.
【单选题】初产妇,28岁,妊娠30周来产前检查。身高153cm,体重50kg,血压120/80mmHg,枕左前位,胎先露浮动,骨盆测量为均小骨盆。关于该诊断,不正确的是
A.
骨盆各平面径线均较正常小1cm
B.
骨盆外形属女性骨盆
C.
多见于身材矮小、体型匀称的妇女
D.
若胎儿较大,明显头盆不称者,应尽早剖宫产
E.
估计胎儿不大,头盆相称者,可给予试产机会
【单选题】Which group of children have a bias when choosing musical instruments?
A.
Children who have private music tutors.
B.
Children who are 8 or older.
C.
Children who are between 5 and 7.
D.
Children who are well-educated.
【单选题】The parents of children who attend private schools ______ for their children's education.
A.
have to pay
B.
have to make preparations
C.
don' t have to pay
D.
don' t have to make preparation
【单选题】初产妇,28岁,妊娠30周来产前检查。身高153cm,体重50kg,血压120/80mmHg,枕左前位,胎先露浮动,骨盆测量为均小骨盆。关于该诊断,不正确的是
A.
骨盆各平面径线均较正常小lcm
B.
骨盆外形属女性骨盆
C.
多见于身材矮小、体型匀称的妇女
D.
若胎儿较大,明显头盆不称者,应尽早剖宫产
E.
估计胎儿不大,头盆相称者,可给予试产机会
【单选题】排便在一日内超过3次,或粪便中脂肪成分增多,或带有未消化的食物、黏液、脓血者称为腹泻。腹泻是由多种不同病因所致,在应用止泻药治疗的同时,实施对因治疗不可忽视。以下药物中,用于治疗因化学刺激引起的腹泻首选的非处方药是()
A.
药用炭
B.
黄连素
C.
氢氧化铝
D.
鞣酸蛋白
E.
双八面蒙脱石
【单选题】As the evidence shows, who would most likely imitate TV violence?
A.
The children who are the only child of the family.
B.
The children who are extraordinarily imaginative.
C.
The children who like to act against the rules.
D.
The children who like fantasy TV programs.
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