皮皮学，免费搜题
登录
搜题
【单选题】
电梯产品中常用的导靴分两类,分别为( )A.
滚动导靴和滑动导靴
B.
刚性滑动导靴和弹性滑动导化
C.
滚动导靴和刚性滑动导靴
D.
滚动导靴和弹性滑动导靴
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】Blanks 1 through 4 are based on the following conversation. Complete the form. Write NO MORE THAN THREE WORDS for each answer. What does the man ask the woman to do? To 1______. What does Iaml Wyndham...
【单选题】Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales,【C1】__...
A.
because
B.
while
C.
if
D.
and
【简答题】现代调查研究方法的特点
【简答题】简述文献法在社会调查研究中有特殊的地位?
【单选题】根据下列文章,请回答 26～30 题。Text 2 More than 30,000 drivers and passengers who sit in the front of the vehicles are killed or seriously injured each year. At a speed of only 30 miles per hour it is the same as...
A.
30,000.
B.
60,000.
C.
Approximately 30,000.
D.
Above 30,000.
【简答题】Blanks 1 through 4 are based on the following conversation. Complete the form. Write NO MORE THAN THREE WORDS for each answer. How long does short memory last? It lasts only 1_____. What is an example...
【简答题】Blanks 1 through 4 are based on the following conversation. Complete the form. Write NO MORE THAN THREE WORDS for each answer. What did the man say about the chair? It is the most reasonable and 1 . W...
相关题目：