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问题

1964年10月某报纸上的头条新闻题目是“看西北荒漠，万里人罕见。蘑菇云突起， 举世皆惊”，这篇新闻报道的是我国（   ）

A．“东方红一号” 成功发射

B．第一颗原子弹爆炸成功

C．近程导弹飞行试验成功

D．“神舟一号”飞船发射成功

答案

B 

题目分析：本题的提示词为“1964年10月”和“蘑菇云”，符合这些提示词的是1964年中国第一颗原子弹爆炸成功的情景。这是新中国成立后中国国防建设和科技方面的重大发展，标志着中国拥有了自己的核武器，也打破了西方国家的核垄断。

填空题

实施“学生饮用奶计划”已成为国际潮流．无糖高钙酸牛奶可作为优质“学生饮用奶”，下表为该饮用奶饮料瓶上所提供的部分信息，请结合所学知识问答下列问题：

配料表：鲜牛奶、乳酸活菌、纯乳钙、木糖醇、阿斯巴甜（含苯丙氨酸）
营养成分：脂肪≥2.5%、蛋白质≥2.3%、非脂乳固体≥6.5%、乳钙≥110mg/100g
净含量：200克
保质期：2℃～6℃7天
（1）这种牛奶在加工过程中加入的乳酸菌属于______类生物．

（2）青少年需要摄取更多的蛋白质和钙等无机盐，因为蛋白质是______的原料．

（3）脂肪在人体内的消化产物是______．

（4）纯乳钙在小肠内被直接吸收后，最先在心脏的______出现．

（5）假如是你在超市购买饮用奶，你会关注哪些信息？（至少两点）______．
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单项选择题

The plant called the scarlet gilia can have either red or white flowers. It had long been thought that hummingbirds, which forage by day, pollinate its red flowers and that hawkmoths, which forage at night, pollinate its white flowers. To try to show that this pattern of pollination by colors exists, scientists recently covered some scarlet gilia flowers only at night and others only by day: plants with red flowers covered at night became pollinated; plants with white flowers covered by day became pollinated.
Which of the following, if tree, would be additional evidence to suggest that hummingbirds are attracted to the red flowers and hawkmoths to the white flowers of the scarlet gilia

A．Uncovered scarlet gilia flowers, whether red or white, became pollinated at approximately equal rates.

B．Some red flowers of the scarlet gilia that remained uncovered at all times never became pollinated.

C．White flowers of the scarlet gilia that were covered at night became pollinated with greater frequency than white flowers of the scarlet gilia that were left uncovered.

D．Scarlet gilia plants with red flowers covered by day and scarlet gilia plants with white flowers covered at night remained unpollinated.

E．(E) In late August, when most of the hummingbirds had migrated but hawkmoths were still plentiful, red scarlet gilia plants produced fruit more frequently than they had earlier in the season.
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