居民地的最小上图图上面积为()平方毫米。
A.6
B.8
C.15
D.4
参考答案:D
____ ugly, these chocolate cookies don’t sell well even though they taste good.
A.Looked
B.Looking
C.Being looked
D.To look
刚性基础的受力特点是()
A.抗拉强度大、抗压强度小
B.抗拉、抗压强度均大
C.抗剪切强度大
D.抗压强度大、抗拉强度小