看图读句子选字。(把正确的字涂成黄色)
1.在写字。
2.真可爱。
3.爱吃青草。
答案:B
— Do you know where John is?
— He was going to meet me earlier, but he didn't _____. [ ]
A. stay up
B. put up
C. show up
D. give up
混凝土的强度等级是按混凝土的()标准强度来划分的。
A.轴心抗压
B.立方体抗压
C.棱柱体抗压
D.轴心抗拉