皮皮学，免费搜题
登录
搜题
【单选题】
采用模具标准件,不仅可以有效ˍˍ模具质量.而且可以ˍˍ模具生产成本并大大ˍˍ模具生产周期。A.
提高、降低、延长
B.
提高、降低、缩短
C.
提高、提高、缩短
D.
降低、降低、缩短
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】Susan started to clean the room； Lily was preparing lunch．
A.
however
B.
but
C.
meanwhile
D.
when
【简答题】I was just preparing to go to bed when the telephone bell rang.
【简答题】When I got up, I found parents were preparing breakfast for me.
【判断题】Right spelling is not important aspect when you are preparing a resume.()
A.
正确
B.
错误
【判断题】一离散信源由A，B，C，D四个符号组成，它们出现的概率分别为1/2，1/4，且每个符号的出现都是独立的，消息{AAAAABBACCDDB}熵为2bit/符号。╳81.信息论的创始人是维纳。
A.
正确
B.
错误
【单选题】When preparing elementary school test, care should be taken______.
A.
not to make the vocabulary more difficult than necessary
B.
not to make the vocabulary that difficult
C.
so as to not make the vocabulary part too hard
D.
in not making the vocabulary a problem in terms of it difficulty
相关题目：