钟表分针的运动可看做是一种旋转现象,一只标准时钟的分针匀速旋转,经过15分钟旋转了( )度。
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短文填空,根据短文内容及首字母提示,补全空格内的单词,使短文完、通顺。(每小题1分,计10分)
The world is changing q 小题1: every day . My home town has changed a lot over the years . These changes make our lives c 小题2: . For example , there have been great changes in entertainment(娱乐).
Nowadays ,people don't have to work as h 小题3: as before . They have more holidays and more f 小题4: time . So , more and more entertainment places open . If you go to the street, you will find more and more KTVs , bars and parks . People’s lives are not b 小题5: any more because they can relax in many different w小题6: of just watching TV at home . They can also go to bookstores and read there for a whole morning i 小题7: they like books . Music fans can go to KTVs and sing their f 小题8: songs . If you like watching movies , you can go to a c 小题9: to enjoy the hottest movies . People enjoy their lives very much .
I like the changes . Do you like them, too ?
母乳中的成分较易为婴儿吸收,关于母乳的陈述错误的是()
A.母乳缓冲力小,对胃酸中和作用弱,有助于营养素的消化吸收
B.母乳含铁量与牛乳相同,但吸收率高
C.母乳含酪蛋白多,白蛋白少,胃内凝块较大,易消化
D.母乳中钙、磷含量比牛乳低,但比例适宜(2:1),利于钙的吸收
E.母乳含不饱和脂肪酸较多,易消化吸收