在图5-9-16所示梁的A点测得梁在弹性范围内的纵横方向的线应变εx、εy后,所能算出的材料常数有:()
A.只有E
B.只有v
C.只有G
D.E、v和G均可算出
参考答案:D
根据上下文内容在每个空格内填入一个适当的词。
B = Ben D = David
B: David, 1___________ do you often do on Saturday?
D: I 2___________ do my homework and sometimes I help Mum 3___________ housework.
B: How 4___________ Sunday?
D: I like to go 5___________. So I often go swimming on Sunday.
B: 6___________ your sister Nancy go 7___________ you?
D: No, she 8___________. She 9___________ shopping. She often 10 ___________ shopping with
my mother.
B: You have a happy weekend, David.
D: That's right.
在玛歌酒庄,白亭(Pavillon Blanc)指的是?
A.玛歌酒庄生产的一款白葡萄酒
B.挂在城堡上方的一面白色旗帜,用来表示葡萄丰收季节开始