在“怎样使两个灯泡都亮起来”的活动中，小明采用如图所示的方法连接，结果两个灯泡都

在果酒、果醋、腐乳及泡菜的制作过程中，所用原料的有机物总(质)量及有机物种类的变化[ ]

A．减少、增多

B．减少、减少

C．增多、增多

D．增多、减少

收来文件

读亚洲部分地区气候分布图。图中①②③④四地与甲乙丙丁四种气候类型对应正确的是

A．①—乙

B．②—丁

C．③—丙

D．④—甲

C

Kerry and Alice were both artists in Britain. They taught drawing and painting at Cambridge University. Although they were friends, each thought oneself to be the better painter.

One day, Kerry promised marriage to Alice. Surprised and pleased by the offer, the girl was not sure whether she would spend her future as a wife or a painter. After a moment she replied as follows, "Each of us must paint a picture. If yours is superior to mine, you can make me your wife. If not, please drop the question." Then it was decided to give it the following day.

The next morning. Alice hung her picture on the gate. It showed a bunch of flowers and won high praise from everyone who passed by. In fact, a crowd collected in front of her masterpiece and fixed eyes on it.

Several hours passed. Then Kerry was seen coming along to the gate with what appeared to be a beautiful leather suitcase in his hand. When he finally stopped before Alice, the girl artist brushed like a rose and agreed to marry him without any hesitation. Why?

64．What did Alice think Kerry's offer?

A. She liked Kerry, but she didn't expect him to promise marriage to her.

B. She didn't want to marry anybody.

C. She didn't like it at all.

D. She thought the offer wasn't polite.

65．In the sentence "If yours is superior to mine, you can make me your wife"。 "superior to" here means ____.

A. not so better than   B. better than     C. so good as   D. as good as

66．  Which of the following is true?

A. Kerry didn't accept Alice's suggestion.

B. Kerry wasn't sure of his painting so he dropped his offer.

C. Kerry did go the next day, but he failed to take a picture

D. Kerry agreed to Alice's suggestion.

67．Alice's picture won high praise because ____.

A. it was true to nature                        B. the flowers were red

C. it showed so large a bunch of flowers          D. people felt it strange to hang it on the gate

68．The "leather suitcase" was in fact ____.

A. a real one                                  B. a painting drawn by Kerry

C. a box with a picture in it                      D. made up of leather

蚕豆根尖细胞在含3H标记的胸腺嘧啶脱氧核苷培养基中完成一个细胞周期，然后在不含放射性标记的培养基中继续分裂至中期，其染色体的放射性标记分布情况是（）

A.每条染色体中都只有一条单体被标记

B.每条染色体的两条单体都被标记

C.半数的染色体中只有一条单体被标记

D.每条染色体的两条单体都不被标记