皮皮学，免费搜题
登录
搜题
【单选题】
图示梁的四种截面形状,假定剪垂直方向。横截面上最大切应力(或切应力铅垂分量的最大值)的位置,有四种答案:A.
全部都在中性轴处
B.
全部都不在中性轴处
C.
a和b在中性轴处,c和d不在中性轴处
D.
a和b不在中性轴处,c和d在中性轴处
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】听力原文：We sent the shipment last week, didn' t we? (A) Actually, I' m doing that today. (B) The ship is not as fast as we think. (C) The shipping department. (36)
A.
B.
【简答题】Kelly is an African elephant. Now she is 19 years old. She lives in the zoo. Kelly has produced more than 100 paintings since last year. She has made over $ 3,500 for the zoo. Zoo leaders say Kelly fi...
【单选题】Kelly has become much_____than before. She can express herself in public now.
A.
lazy
B.
lazier
C.
brave
D.
brave
【简答题】电子商务项目策划遵循的主要原则有哪些?
【单选题】( )Kelly has become much ________ than before. She can express herself in public now.
A.
lazy
B.
lazier
C.
brave
D.
braver
【单选题】When I met him last week, it was the first time we had seen each other _____ we were at school. [ ]
A.
for
B.
from
C.
since
【简答题】貸してもらう 聞き取り練習 (3)3漢字の答えを書いてください
相关题目：