皮皮学，免费搜题
登录
搜题
【单选题】
下面是使用显微镜对光的几个操作步骤，正确的顺序应该是①选遮光器上适宜的光圈对准②转动转换器，是低倍物镜对准③左眼注视目镜（右眼睁开）④转动反光镜调出一个的视野。（ ）A.
②④③①
B.
②①③④
C.
③①②④
D.
①③②④
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】It's quite ____ of beginners to forget to use an article before a noun. [ ]
A.
usual
B.
common
C.
typical
D.
ordinary
【单选题】Rubidium, potassium and carbon are three common elements used to date the history of Earth. The rates of radioactive decay of these elements are absolutely regular when averaged out over a period of t...
A.
They can be made into clocks.
B.
They are rich in content.
C.
Their decay is slow but regular.
D.
The products of their decay are the same.
【简答题】Harrington branched out and she has three bakeries with the common name of ______.
【多选题】Randy J. Hunt曾经写过一本书《互联网产品设计》,其中提到网站与产品的区别中包括哪些维度?
A.
使用频率
B.
数据和内容的方向
C.
导航制还是参与制
D.
账号
E.
页面还是流线设计
【单选题】This dictionary is a three-thousand common word collection with samples of_______ and spoken language.
A.
writing
B.
wrote
C.
write
D.
written
【简答题】胃借与周围脏器连接的韧带被固定在上腹部,这些韧带包括有 、肝胃韧带、 、 和 。
【简答题】细胞主要由 ( )、( )和少量 糖类 组成。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
