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听力原文: Today when a man steps on to the moon, or something new and important happens, the world learns about it immediately. What did the newspapers say about that first flight in 1903? Strangely enough, they said hardly anything about it at all. There were only a few reports about it in the papers. These reports said very little. Some of the things they said were not even correct, In 1904, the Wrights built a second machine. They called it Flyer No. 2. They invited some reporters to a field near Dayton to watch them fly. Unfortunately, there was some mechanical trouble with the plane and it did not fly at all that day. The reporters went away. They were disappointed and did not come back. The Wrights went on with their work. In 1905, they built an even better machine, Flyer No. 3. They were able to stay up in the air for half an hour and more in this machine. They were able to turn and climb in the air. Farmers, travelers on the roads around Dayton often saw them flying. But when these people told reporters about it, they refused to believe them. The Wrights offered Flyer No. 3 to the United States Government. The Government was not interested. They seemed to think the Wrights wanted money in order to build an airplane, They did not understand the Wrights had already done this, and flown it as well. Experts were still saying that mechanical flight was impossible. At the end of 1905, the two brothers took their plane to pieces. The parts were put into a huge wooden case. It seemed nobody was interested. (26)
A.
They were able to fly it in the air.
B.
They were able to stay up in the air for half an hour and more in the machine.
C.
They were able to carry travelers.
D.
They were able to fly in around Dayton.
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【单选题】组织透明剂必须具有( )
A.
可与95%乙醇和福尔马林二者混合
B.
可与50%乙醇和石蜡二者混合
C.
可与75%乙醇和石蜡混合
D.
可与纯乙醇和石蜡二者混合
E.
可与福尔马林和石蜡二者混合
【单选题】对输尿管的描述错误的是
A.
起自肾盂
B.
开口于膀胱
C.
在小骨盆上缘处,跨过髂血管的后方
D.
有三个生理狭窄
【单选题】有关输尿管的描述错误的是
A.
一对肌性的管道
B.
起自于肾盂,终于膀胱
C.
输尿管开口在膀胱底内面的输尿管口
D.
输尿管第二处狭窄位于膀胱壁内部
【单选题】心理学家阿龙森的 “犯错误效应”实验,证明了下列四种情形的人,哪一种情形下最受人欢迎?
A.
才能平庸而未犯错误的人;
B.
才能出众而未犯错误的人;
C.
才能平庸而犯了错误的人;
D.
才能出众而犯了错误的人。
【单选题】组织透明剂必须具有()
A.
可与95%乙醇和福尔马林二者混合
B.
可与75%乙醇和石蜡混合
C.
可与50%乙醇和石蜡二者混合
D.
可与福尔马林和石蜡二者混合
E.
可与纯乙醇和石蜡二者混合
【单选题】组织透明剂必须具有()
A.
透明和硬化作用
B.
脱乙醇和溶解石蜡作用
C.
透明和脱乙醇作用
D.
透明和软化组织作用
E.
透明和固定作用
【多选题】决定牵引效果的牵引因素有()。
A.
患者年龄
B.
牵引角度
C.
牵引持续的时间
D.
牵引重量
E.
患者运动水平
【多选题】1,4-苯并二氮卓类药物药效主要受哪些因素影响
A.
2位被吸电子基氯、三氟甲基取代,活性增加
B.
在1, 2-位骈合三唑环,提高了受体的亲和力,活性明显增加
C.
在1位引入哌嗪基,活性大大增加
D.
4, 5位双键被饱和,其活性大大降低
E.
7位引入吸电子基团硝基,可明显增强活性。
【多选题】决定牵引效果的牵引因素有
A.
患者年龄
B.
牵引角度
C.
患者运动水平
D.
牵引重量
【单选题】组织透明剂必须具有()
A.
透明和硬化作用
B.
透明和软化组织作用
C.
透明和固定作用
D.
脱酒精和溶解石蜡作用
E.
透明和脱酒精作用
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