【简答题】根据括号内提示填空 1) 【 2016全国卷2】 Recent studies show that we are far more productive at work if we take short breaks 67 __ (regular). 2) 【 2016全国卷3】 Food in small pieces could be eaten easily with twigs which...
【单选题】In what way is food for space packed?
A.
Very small pieces of food are put on the floor.
B.
Some of it is put into robes.
C.
Small-sized cookies are packed in plastic.
【单选题】In what way is food for space packed?
A.
Very small pieces of food are put on the floor.
B.
Some of it is put into tubes.
C.
Small-sized cookies are packed in plastic.
【多选题】蚕豆病是一种遗传性葡糖-6-磷酸脱氢酶缺乏导致的疾病,表现为食用新鲜蚕豆后可发生急性血管内溶血。该病病人发生溶血的原因包括
【多选题】蚕豆溶血性贫血是
D.
除必须具有遗传易感性外,还需具备环境因素才能发病。
【简答题】Bruton综合征是一种人类遗传病(用基因A、a表示),其主要特征是血液中缺乏B淋巴细胞及γ球蛋白。下图表示某家族Bruton综合征的遗传系谱图(不携带其他致病基因),其中II5个体不携带Bruton综合征致病基因,调查发现该家族此病患者均不能活到成年。葡萄糖-6-磷酸脱氢酶正常时能保护红细胞免受氧化物质的威胁,此酶异常时表现为缺乏症,这是一种常见的单基因隐性遗传病(用基因B、b表示)。患者绝大多...
【单选题】In what way is food for space packed?
A.
Very small pieces of food are put on the floor.
C.
Some of it is put into tubes. C.Small-sized cookies are packed in plastic.
【单选题】______ churns food into even smaller pieces, mixes the food with gastric juices to digest food (especially protein), and regulates an even flow of food into the small intestine. Acid in the stomach ki...
【简答题】Food in small pieces could be eaten easily with twigs which ________(gradual)turned into chopsticks.
【简答题】The Chinese ____7_____ chopsticks for five thousand years. People probably cooked their food in large pots, ______8___ twigs( 树枝 ) to remove it. Over time, _____9____ the population grew, people began...