题目

完形填空 A woman in her sixties lived alone in her little cottage with a pear tree at her door. She spent all her time taking care of the tree. But the children nearby drove her 1 by making fun of her. They would climb her tree and then run away with pears,2 “Aunty Misery” at her. One evening, a passer-by asked to 3 for the night. Seeing that he had an 4 face, she let him in and gave him a nice 5. The next morning the stranger, actually a sorcerer (巫师), thanked her by granting (允准) her 6 that anyone who climbed up her tree 7 not be able to come back down until she 8 it. When th1994年科学家发现一种元素，它的核内有161个中子，质量数为272，该元素原子序数是（ ）A. 111B. 161C. 272D. 443