皮皮学，免费搜题
登录
搜题
【简答题】
职业性有害因素是指 （ ）
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】—Was the driving pleasant when you went to Mexico last summer? —No, it ________ (rain) for four days when we arrived, so the roads were very muddy.
【单选题】Look at that lady. ___________ is my teacher. ___________ eyes are big. [ ]
A.
He, His
B.
She, She
C.
She, Her
【单选题】The recommendation he gave me is that I ____ more traveling to open my eyes.
A.
will do
B.
could do
C.
should do
D.
must do
【单选题】系统的幅频特性|H(ω)|和相频特性如图(a)(b)所示,则下列信号通过该系统时,不产生失真的是 ( )。
A.
f(t) = cos(t) + cos(8t)
B.
f(t) = sin(2t) + sin(4t)
C.
f(t) = sin(2t) sin(4t)
D.
f(t) = cos2(4t)
【简答题】Was the driving pleasant when you went to Mexico last summer?A. , it ____ for four days when we arrived, so the roads were very muddy. B. was raining B. had been raining C. would be raining D. rai...
【单选题】____, I admire his courage, ____ I don’t approve of his methods ?
A.
though,/
B.
Although,/
C.
Yes, but
D.
although, but
【单选题】--Was the driving pleasant when you vocationed in Mexico last summer? ----No, it ___ for four days when we arrived, so that the roads were very muddy.
A.
was raining
B.
had been raining
C.
would be raining
D.
have rained
【单选题】—Was the driving pleasant when you vacationed in Mexico (墨西哥) last summer? —No, it______ for four days when we arrived so that the roads were very muddy.
A.
was raining
B.
had been raining
C.
would be raining
D.
have rained
相关题目：