皮皮学，免费搜题
登录
搜题
【简答题】
工业机器上两种减速器分别是谐波减速器和 器。
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】纯金属的晶格类型主要有 ( ) 、 ( ) 和 ( )
【单选题】October 15th,2008 is the first Global Handwashing Day, ____goal is to create a culture of handwashing with soap.
A.
of which
B.
whose
C.
on which
D.
when
【简答题】纯金属的晶格类型主要有体心立方晶格、____和 密排六方晶格 三种。
【简答题】听较长对话，回答问题。 1.When is Sally’s birthday? A.October 15 th B.October 12 th C.October 22 nd 2.How old is Sally? A.She is 13. B.She is 14 . C.She is 11. 3.What does she like? A.fruit cake B.salad C.ice cre...
【简答题】金属的晶格类型主要有 、 和 三大类,其中纯铁的晶格类型为 和 。
【单选题】China’s first manned spaceship “Shenzhou Ⅴ” was sent up into space on October 15 and returned safely to the earth on October 16,______ is a great honour for our great motherland.
A.
that
B.
which
C.
what
D.
it
相关题目：