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【单选题】
肾上腺素和去甲肾上腺素对心血管作用的叙述,哪不正确的A.
共同点是升高血压
B.
肾上腺素与心肌β1受体结合使心输出量增加
C.
肾上腺素可使皮肤.肾脏及胃肠道的血管收缩,而骨骼肌和肝脏血管舒张
D.
去甲肾上腺素可使除血管以外的所有小动脉强烈收缩
E.
去甲肾上腺素可与心肌β2受体结合使心输出量增加
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【简答题】根据图片内容,选择正确的短语填空: They are ____1______joggers. They are very_____2_____, with a weight of less than 1 pound. They are _____3_____, and you'll never feel tired in them. They are ____4_______ the best m...
【判断题】人们在日常生活中所用的时间是以太阳通过天体子午线的时刻——“中午”作为标准来划分。每个地点根据太阳和子午线的相对位置确定的本地时间,称“地方时”。()
A.
正确
B.
错误
【简答题】B Paper was first made in the year 105. It was made by a Chinese named Cai Lun. For over 500 years paper was made only in China. People in Japan learned of paper around the year 600. As years went by,...
【简答题】Finally, he came over the brow of the hill, his right shoulder lurching up and down with each pumping motion of his loosely swinging arms.
【简答题】( )指的是人们在日常交往应酬之中,所采用的彼此之间的称谓语,也就是当面给对方打招呼时表明彼此间的关系的名称。
【简答题】In China, they "made mistakes", suffered by them, acknowledged and studied them, thus planned victory.
【简答题】Paper was first made in the year 105A.D.(公元). It was made by a man named Ts’ai Lun. He lived in China. For over 500 years paper was made only in China. People in Japan learned of paper around the year...
【单选题】Why did the audience laugh when Jack Ma said " This is called domestic consumption".
A.
Because they didn't think domestic consumption exists in China. They thought Chinese people always save rather than spend.
B.
Because Jack Ma made a humorous use of a pun (一语双关）on the word "domestic" . "Domestic" in the phrase "domestic consumption (内需)" usually means "of or inside a particular country" while it means " used in the home" in the example of 48% of Jack Ma's daughter-generation's shirts lying unused in the wardrobe(衣柜）.
【简答题】已有定义 inta;floatb,x;char c1,c2; 为使 a=3,b=6.5,x=12.6,c1=’a’,c2=’A’ 正确的scanf函数输入是__, 输入数据的方式是__。
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