皮皮学，免费搜题
登录
搜题
【简答题】
核苷酸是组成核酸的基本*单位，它是由（）（）（）三部分构成，无论是DNA还是RNA都是有许许多多的核苷酸通过（）连接而成的。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】______, we continued lifting out the pistons.
A.
Late as it was
B.
As it was late
C.
Since it was late
D.
Because of its late
【单选题】Since it was getting late and there were no hotels nearby, we decided to at a small inn for the night.
A.
put off
B.
put away
C.
put in
D.
put up
【简答题】完形填空。 It was an afternoon in the winter. Some friends and I were talking at a restaurant. We talked and talked and soon swimming became the 1 . Suddenly I hit upon an idea. 'Wouldn't it be 2 if we wen...
【多选题】下列说法正确的是：
A.
行内样式是最简单的CSS使用方法，但由于需要为每一个标记设置style属性，后期维护成本非常高，而且网页容易过“胖”，因此不推荐使用。
B.
内部样式只影响单个文件，对于不同页面上的同一标记希望采用同样的风格时，内部样式就麻烦了。
C.
外部样式表修改后所有引用的页面样式自动地更新。
D.
同时链接几个外部样式表时按“最近优先的原则”。
【简答题】It was so a sunny day that I decided to go fishing. I went 1. out early and sit on the bank of the river. I hoped that I would 2. have a good harvest. A long time passed. Although I waited 3....
【单选题】—Why are you late for school? —______ I got up late this morning. [ ]
A.
Since
B.
As
C.
For
D.
Because
相关题目：
参考解析：
知识点：
题目纠错 0
发布
