I don't have a soccer ball _______ I have a volleyball. [ ]
A. and
B. but
C. or
D. so
答案:B
周长是18.84厘米的圆,它的直径是______厘米,面积是______平方厘米.
史密斯认为人们的情感可分为三类()
A.感觉皮层;情感皮层;智力皮层
B.感官皮层;情感皮层;智慧皮层
C.感觉皮层;情感皮层;智慧皮层
D.感官皮层;情感皮层;智力皮层