测量直径为Φ25±0.015㎜的轴颈,应选用的量具是()。
A、游标卡尺
B、杠杆表分表
C、内径千分尺
D、外径千分尺
参考答案:D
阅读课文,根据短文内容判断正 ( T)误 ( F)。
Do you know Jay Chou? He is a very famous popular singer. When he was young, he was shy. He didn't study well at school, and his mother often worried (担心) about his futurec (将来). From then on he was
interested in music. In 2000 he became a singer. Manyfans like Jay and his special style of R&B.They love
his music. He was released three albums. Ye Huimei is the new one. All the music in his album is made by
himself. Some of the lyrics are written by himself, too.
( ) 1. Jay is a famous basketball player.
( ) 2. His special style is R&B.
( ) 3. He liked studying when he was young.
( ) 4. His new album is Ye Huimei.
( ) 5. He can't write lyrics.
下列物质在生物体内的转化过程中需要ATP的是[ ]
A.葡萄糖→乙醇+二氧化碳
B.葡萄糖→乳酸
C.二氧化碳+水→葡萄糖
D.蛋白质→氨基酸