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【简答题】
Jimmy has been a postman for the last ten years. He loves to talk to his wife in the evenings about the people he delivers to. He tells her about Mrs. Mannes, the little old lady at number 24, who is always very unfriendly when he delivers her post. She has a son in Australia and a daughter in France so she often gets post. But one day when Jimmy rings the bell with a parcel for Mrs. Mannes from her daughter, there is no answer. Jimmy knows that the old lady never goes out (she even gets her food delivered from the local supermarket) so he starts to feel worried. He looks through the letterbox but sees nothing, and then he looks through the living room window and sees Mrs. Mannes lying on the floor. He goes around the house to check if the back door is open. It is, so he runs in and immediately rings for an ambulance. Mrs. Mannes gets to hospital in time. The doctor says that she had had a heart attack and if she had come to hospital any later she would not have survived. From that day on, Mrs. Mannes is very friendly and always gives Jimmy a bar of chocolate when he delivers a parcel.
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举一反三
【单选题】牙周膜纤维的主要成分是
A.
胶原纤维和Oxytalan纤维
B.
Oxytalan纤维和弹力纤维
C.
胶原纤维和网状纤维
D.
弹力纤维和胶原纤维
E.
网状纤维和弹力纤维
【简答题】若角 x 是三角形的一个内角,且 ,则cos x 等于( )
【单选题】Oxytalan纤维.........( )
A.
是一种耐碱纤维
B.
邻近牙根处数量多
C.
与牙体长轴垂直排列
D.
调节牙周血流
E.
成熟的弹力纤维
【判断题】管理单元指针用来指示净负荷起点在STM-N帧中的准确位置。
A.
正确
B.
错误
【单选题】若 α 是三角形的一个内角,且cosα= ,则 α 等于( )
A.
30°
B.
60°
C.
120°
D.
60°或120°
【单选题】迷走神经兴奋对胰腺分泌的作用是
A.
抑制其分泌
B.
使水和 HCO 3 - 大量分泌,酶少量分泌
C.
使酶大量分泌而水和 HCO 3 - 仅少量分泌
D.
使水、 HCO 3 - 和酶分泌明显增加
【单选题】若α是三角形的一个内角,且 ,则α等于( )
A.
30°
B.
30°或60°
C.
60°或120°
D.
60°
【多选题】迷走神经兴奋引起胰液分泌特点有( )。
A.
酶含量丰富
B.
酶含量少
C.
水和碳酸氢盐含量高
D.
水和碳酸氢盐含量少
E.
主要作用于胰腺的腺泡细胞
【多选题】关于自动变速器的手动阀,下列哪些说法是正确的?
A.
装在阀板总成上,由驾驶员通过换挡杆操纵
B.
它是个多路换向阀
C.
对应于变速器操纵杆的每个位置,手动阀移动到相应的位置,使变速器内部处于不同的状态
D.
在P、R、N、D位时,手动阀直接控制换挡执行元件的工作,并形成确定的相应挡位
【单选题】Oxytalan纤维
A.
是一种耐碱纤维
B.
邻近牙骨质处数量多
C.
与牙体长轴垂直排列
D.
不附着于血管壁
E.
类似于胶原纤维
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