试举一例中外优秀雕塑作品进行鉴赏。
参考答案:
各题答案可以发挥教材中所讲的主要点,也可不囿于教材的说法,只要言之有据、言之成理、自圆其说即可给高分。更要鼓励研究性、创造性答题。
Not everybody knows there ____ more than one kind of English in the world. [ ]
A. is
B. are
C. has
D. have
Ⅰ型强心苷是()
A.苷元-(D-葡萄糖)y
B.苷元-(6-去氧糖甲醚)x-(D-葡萄糖)y
C.苷元-(2,6-二去氧糖)x-(D-葡萄糖)y
D.苷元-(D-葡萄糖)y-(2,6-二去氧糖)x
E.苷元-(6-去氧糖)x-(D-葡萄糖)y