皮皮学,免费搜题
登录
搜题
【单选题】
如图所示的转子中,已知各偏心质量 1=10Kg ,m 2 =15Kg ,m 3 =20Kg ,m 4 =25Kg ,它们的回转半径分别为 r 1 =20cm,r 2 =30cm ,r 3 =30cm ,r 4 =25cm ,方位如图所示,则需加平衡积m b r b 的大小和方位是( )。
A.
(A). 与水平正向夹角40°
B.
(B). 与水平正向夹角-140°
C.
(C). 与水平正向夹角40°
D.
(D). 与水平正向夹角-140°
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】What is the name for a group of family doctors working in the same building together?
【单选题】某脑卒中偏瘫患者经康复治疗后,能拄拐在小区、家庭中步行,自行穿衣吃饭,但不敢外出购物,按独立程度来分,属于
A.
完全独立
B.
小部分独立
C.
无法独立
D.
大部分独立
E.
以上都不是
【简答题】To him, I am a tedious oddity: a father he is obliged to listen to and a man absorbed in the rules of grammar, which my son seems allergic to. 2. Blame for the scandal of this language deficit should ...
【单选题】Language should be looked upon as a road map.
A.
SV
B.
SVO
C.
SVP
D.
SVOO
E.
SVOC
【简答题】Language should be looked upon a road map and a possession.
【单选题】Most educators objected to Stoker's idea because they thought______.
A.
a language should be easy to use and understand
B.
sign language was too artificial to be widely accepted
C.
a language could only exist in the form. of speech sounds
D.
sign language was not extensively used even by deaf people
【判断题】During a job interview, the language should be straightforward and positive.
A.
正确
B.
错误
【单选题】人的基本心理活动和首要的心理功能是( )
A.
B.
C.
D.
【判断题】Rigg thought that the language should be taught as a “whole”.
A.
正确
B.
错误
【简答题】一、原材料按实际成本核算 1 、 2019 年 7 月 3 日 S 企业从 B 公司购入甲材料 1000 千克,取得增值税专用发票,发票上注明每千克 100 元,买价 100000 元,增值税进项税额 13000 元,材料已经验收入库,货款尚未支付。 2 、 2019 年 7 月 8 日 S 企业从 Q 公司购入乙材料 2000 千克,取得增值税专用发票,发票上注明每千克 80 元,买价 1600...
相关题目: