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【单选题】
属于化学分析法的是()
A.
以没食子酸为氧吸收剂来测定氧含量
B.
利用氧的顺磁性来测定氧含量
C.
利用气体导热性来测定氧含量
D.
利用CO吸收红外线的特性来测定CO 2 含量
E.
利用气体的导热性来测定CO 2 含量
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【单选题】It is the third time so far that such a festival ________in my hometown.
A.
has held
B.
has been held
C.
will be held
D.
had been held
【单选题】两顶尖装夹的优点是安装时不用找正,()精度较高。
A.
定位
B.
加工
C.
位移
D.
回转
【单选题】患者,女性;57岁,老师。喜食辛辣食物,患痔疮6年,逐渐加重。近2个月来用力屏气或咳嗽时偶有痔核脱出肛门外,需用手将其推回或卧床休息后才能将其复位。术后护士对患者的护理正确的是
A.
取侧卧位以减少切口压迫
B.
术后3天内尽量不排便
C.
术后3天开始进食
D.
若出现尿潴留应立即导尿
E.
适当进行缩肛运动
【单选题】患者,女性;57岁,老师。喜食辛辣食物,患痔疮6年,逐渐加重。近2个月来用力屏气或咳嗽时偶有痔核脱出肛门外,需用手将其推回或卧床休息后才能将其复位。该患者的病情属于
A.
混合痔
B.
内痔第Ⅰ期
C.
内痔第Ⅱ期
D.
内痔第Ⅲ期
E.
血栓性外痔
【单选题】My uncle _______ his hometown for ten years.
A.
left
B.
has left
C.
has been away from
【单选题】My father my hometown for two months.
A.
left
B.
went away from
C.
has left
D.
has been away from
【单选题】唯物主义哲学关于世界本原和统一性的最高抽象和唯物主义世界观的基石是
A.
认识范畴
B.
实践范畴
C.
运动范畴
D.
物质范畴
【单选题】My friend Li Xiao knows my hometown very well because he _______ there many times with me.
A.
has been
B.
has gone
C.
had gone
D.
went
【单选题】两顶尖装夹的优点是安装时不用找正,()精度高
A.
定位
B.
加工
C.
位移
D.
回转
【单选题】My hometown has changed a lot. It is _______ longer what it used _______. [     ]
A.
not; to.
B.
not; to be
C.
no; to be
D.
no, to
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