皮皮学，免费搜题
登录
搜题
【简答题】
RNA的基本组成单位是( )、( )、( )和( );DNA的基本组成单位是( )、( )、( )和( ),它们通过( )键相互连接形成多核苷酸。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】"I didn't quite catch that." indicates ....
A.
The object was falling off my hands.
B.
The capture was running away.
C.
I missed the bus.
D.
I didn't see the point.
查看完整题目与答案
【单选题】老人睡前准备错误的做法是
A.
按铺床法铺好被窝，拍松枕头
B.
按需关闭门窗
C.
帮助老人做好睡前个人卫生
D.
老人冬季睡眠最适宜的室温是 10—15°C
查看完整题目与答案
【单选题】支气管哮喘发病的主要原因是：
A.
呼吸道过敏
B.
呼吸道感染
C.
精神因素
D.
花粉吸入
E.
吸烟
查看完整题目与答案
【单选题】--Beg your pardon, please.I didn't quite catch what you said.---Oh, I ___ to myself.
A.
had talked
B.
talking
C.
talked
D.
was talking
查看完整题目与答案
【单选题】一静止的均匀细棒,长为L,质量为M,可绕通过棒的端点且垂直于棒长的光滑轴O在水平面内转动.一质量为m,速率为v的子弹在水平面内恰与棒垂直的方向射入棒的自由端.设击穿棒后子弹的速度减为v/2,则此棒的角速度为
A.
mv/(ML)
B.
3mv/(2ML)
C.
5mv/(3ML)
D.
7mv/(4ML)
查看完整题目与答案
【单选题】老人睡前准备错误的做法是(　　)。
A.
按铺床法铺好被窝，拍松枕头
B.
按需关闭门窗
C.
帮助老人做好睡前个人卫生
D.
老人冬季睡眠最适宜的室温是10～15℃
查看完整题目与答案
【单选题】_____, his suggestion is not useful, though it sounds very interesting. [     ]
A.
Generally speaking
B.
To be honest
查看完整题目与答案
【单选题】Though it sounds a bit too dear ( 昂贵 ), it is worth ______. A. being bought B. buying C. to buy D. buying it
A.
being bought
B.
buying
C.
to buy
D.
buying it
查看完整题目与答案
【单选题】Though it sounds a bit too dear(昂贵), it is worth_ A. being bought B. buying C. tobuy D. buying it
A.
a
B.
b
C.
c
D.
d
查看完整题目与答案
【单选题】—Beg your pardon, please. I didn't quite catch what you said. —Oh, I just______to myself.
A.
talked
B.
am talking
C.
was talking
D.
had teen talked
查看完整题目与答案
相关题目：
【单选题】"I didn't quite catch that." indicates ....
A.
The object was falling off my hands.
B.
The capture was running away.
C.
I missed the bus.
D.
I didn't see the point.
查看完整题目与答案
【单选题】老人睡前准备错误的做法是
A.
按铺床法铺好被窝，拍松枕头
B.
按需关闭门窗
C.
帮助老人做好睡前个人卫生
D.
老人冬季睡眠最适宜的室温是 10—15°C
查看完整题目与答案
【单选题】支气管哮喘发病的主要原因是：
A.
呼吸道过敏
B.
呼吸道感染
C.
精神因素
D.
花粉吸入
E.
吸烟
查看完整题目与答案
【单选题】--Beg your pardon, please.I didn't quite catch what you said.---Oh, I ___ to myself.
A.
had talked
B.
talking
C.
talked
D.
was talking
查看完整题目与答案
【单选题】一静止的均匀细棒,长为L,质量为M,可绕通过棒的端点且垂直于棒长的光滑轴O在水平面内转动.一质量为m,速率为v的子弹在水平面内恰与棒垂直的方向射入棒的自由端.设击穿棒后子弹的速度减为v/2,则此棒的角速度为
A.
mv/(ML)
B.
3mv/(2ML)
C.
5mv/(3ML)
D.
7mv/(4ML)
查看完整题目与答案
【单选题】老人睡前准备错误的做法是(　　)。
A.
按铺床法铺好被窝，拍松枕头
B.
按需关闭门窗
C.
帮助老人做好睡前个人卫生
D.
老人冬季睡眠最适宜的室温是10～15℃
查看完整题目与答案
【单选题】_____, his suggestion is not useful, though it sounds very interesting. [     ]
A.
Generally speaking
B.
To be honest
查看完整题目与答案
【单选题】Though it sounds a bit too dear ( 昂贵 ), it is worth ______. A. being bought B. buying C. to buy D. buying it
A.
being bought
B.
buying
C.
to buy
D.
buying it
查看完整题目与答案
【单选题】Though it sounds a bit too dear(昂贵), it is worth_ A. being bought B. buying C. tobuy D. buying it
A.
a
B.
b
C.
c
D.
d
查看完整题目与答案
【单选题】—Beg your pardon, please. I didn't quite catch what you said. —Oh, I just______to myself.
A.
talked
B.
am talking
C.
was talking
D.
had teen talked
查看完整题目与答案