皮皮学，免费搜题
登录
搜题
【判断题】
我们所学的安全色不适用灯光信号或荧光颜色以及为其他目的使用的颜色。A.
正确
B.
错误
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
【简答题】信号是信息的载体,在电路中所用的电信号划分为 __________________ 和模拟信号。
【单选题】听力原文：W: How's your morning exercise coming along? M: Perfect. I do morning exercise every day now except when it rains. How're things with you? W: Very well. Can you see I've lost several pounds? What...
A.
Both the man and woman like sports.
B.
The woman does morning exercise every day except when it rains.
C.
The man wants to lose weight.
D.
Both the man and the woman want to keep fit.
【简答题】金义成是___流派的代表人为
【单选题】---________do you exercise? -I exercise once a day. [ ]
A.
How often
B.
How long
C.
How old
D.
How much
相关题目：