Does he _____ small eyes? Yes, he does.[ ]
A. is
B. have
C. has
D. isn't
答案:B
连枷胸是指( )
A.单处肋骨骨折B.多处肋骨骨折C.多根肋骨骨折D.多根多处肋骨骨折E.两侧胸部多根肋骨骨折
将植物横放,测量根和茎生长素浓度与其生长状况的关系如甲图所示,则曲线上P点最可能对应于乙图中的位置是()
A.a
B.b
C.c
D.d