皮皮学,免费搜题
登录
搜题
【单选题】
营养性缺铁性贫血的最主要原因是
A.
先天性不足
B.
铁的摄入不足
C.
铁的吸收减少
D.
生长发育快
E.
铁丢失过多
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】Why not take up some outdoor sports to relax ______ office work? It will also help keep you healthy.
A.
for
B.
from
C.
on
D.
of
【单选题】在固体废物监测的采样程序中,根据固体废物的( )确定份样量大小。
A.
份样量
B.
最小粒度
C.
批量
D.
最大粒度
【单选题】VHDL 中,采用clk’event and clk=’1’描述CLK的 。
A.
高电平
B.
低电平
C.
上升沿
D.
下降沿
【单选题】You should take more outdoor activities.
A.
No, I won't.
B.
I don't think so .
【简答题】采用动态扫描法的多个数码管复合显示时,各个LED的显示分别只占部分时间,但是看起来却好像是同时点亮的。这是利用了__________.
【简答题】Why not take up some outdoor sports as relaxation from office work?
【多选题】以下是八段LED数码管静态显示的特点的是( )。
A.
由于占用多个I/O口,编程比较复杂;
B.
所能接的数码管位数较少,适用于显示位数较少的场合;
C.
无需动态扫描,无闪烁;
D.
各数码管接口的I/O口线是专用的。
【简答题】A.Have a meal in a restaurant and go to movies. B.See an outdoor movie with take-away food. C.Watch some terrifying film without subtitles. D.See some new foreign film in the open.
【简答题】小题1: Nowadays students take part in more and more outdoor _______(活动). 小题2: People ________(想知道) how to pr the earthquake from happening. 小题3: Would you mind _______(劝告) your father not to smoke?...
【判断题】The first step of cleaning the air conditioner is to take leaves and debris away from the outdoor condenser.
A.
正确
B.
错误
相关题目: