皮皮学，免费搜题
登录
搜题
【简答题】
若让机械筛的振动达最大,应该使驱动信号的频率尽量 筛子的固有频率
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】用“who”或“that”填空。 1. The man _______ is talking with my mother is my father. 2. That book is the one _______ I bought yesterday. 3. He is one of the workers _______ have been saved in that accident. 4....
查看完整题目与答案
【简答题】用“who”或“that”填空。 1. The man ________ is talking with my mother is my father 2. That book is the one _______ I bought yesterday . 3. He is one of the workers ________ been saved in that accident . 4. T...
查看完整题目与答案
【判断题】在社会保障领域中,发挥着主导性作用的是国家( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】硫化故障是指极板上生成了白色的、( )晶粒的、不可逆的硫酸铅。
A.
粗
B.
细
C.
圆
D.
扁平
查看完整题目与答案
【单选题】(6~7题共用题干)患者,女性,64岁,因体检发现血糖升高而就诊。为明确诊断,患者于8:00AM空腹抽血,然后口服75g葡萄糖水,分别于10:00AM、11:00AM抽血,进行血糖测定。该真空采血管内所含的试剂最可能的是( )
A.
促凝剂
B.
肝素
C.
EDTA
D.
枸橼酸钠
E.
氟化钠
查看完整题目与答案
【多选题】在使用绳索技术辅助渡河时,需要提前确定的事项有:( )
A.
河流进行可通过性
B.
判断绳子长度是否足够
C.
确定要渡河的人数
D.
边是否有可靠的锚点
查看完整题目与答案
【单选题】--My cousin sent me a wonderful gift from Africa.--Oh, is that so?______ ?
A.
Where is it from
B.
What's it like
C.
How did it come
D.
Who sent it to you
查看完整题目与答案
【单选题】—Of the two man, who is your father? —___ _ of them is my father. [     ]
A.
Neither
B.
  Both
C.
  None
D.
  Either
查看完整题目与答案
【单选题】--My cousin sent me a wonderful gift from Africa.--Oh, is that so? ______?
A.
Where is it from
B.
Who sent it to you
C.
How did it come
D.
What's it like
查看完整题目与答案
【单选题】They didn't know who "Father Christmas" really is.
A.
who "Father Christmas" really is
B.
Father Christmas
查看完整题目与答案
相关题目：
【简答题】用“who”或“that”填空。 1. The man _______ is talking with my mother is my father. 2. That book is the one _______ I bought yesterday. 3. He is one of the workers _______ have been saved in that accident. 4....
查看完整题目与答案
【简答题】用“who”或“that”填空。 1. The man ________ is talking with my mother is my father 2. That book is the one _______ I bought yesterday . 3. He is one of the workers ________ been saved in that accident . 4. T...
查看完整题目与答案
【判断题】在社会保障领域中,发挥着主导性作用的是国家( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】硫化故障是指极板上生成了白色的、( )晶粒的、不可逆的硫酸铅。
A.
粗
B.
细
C.
圆
D.
扁平
查看完整题目与答案
【单选题】(6~7题共用题干)患者,女性,64岁,因体检发现血糖升高而就诊。为明确诊断,患者于8:00AM空腹抽血,然后口服75g葡萄糖水,分别于10:00AM、11:00AM抽血,进行血糖测定。该真空采血管内所含的试剂最可能的是( )
A.
促凝剂
B.
肝素
C.
EDTA
D.
枸橼酸钠
E.
氟化钠
查看完整题目与答案
【多选题】在使用绳索技术辅助渡河时,需要提前确定的事项有:( )
A.
河流进行可通过性
B.
判断绳子长度是否足够
C.
确定要渡河的人数
D.
边是否有可靠的锚点
查看完整题目与答案
【单选题】--My cousin sent me a wonderful gift from Africa.--Oh, is that so?______ ?
A.
Where is it from
B.
What's it like
C.
How did it come
D.
Who sent it to you
查看完整题目与答案
【单选题】—Of the two man, who is your father? —___ _ of them is my father. [     ]
A.
Neither
B.
  Both
C.
  None
D.
  Either
查看完整题目与答案
【单选题】--My cousin sent me a wonderful gift from Africa.--Oh, is that so? ______?
A.
Where is it from
B.
Who sent it to you
C.
How did it come
D.
What's it like
查看完整题目与答案
【单选题】They didn't know who "Father Christmas" really is.
A.
who "Father Christmas" really is
B.
Father Christmas
查看完整题目与答案