第27题: [单项选择]The management has assured all staff that anyone () the professional development seminars will receive a certificate thanking them for their participation. A. attend B. attended C. attending D. to attend 参考答案:C 答案解析:
本题需选择适当的词形。横线处所填单词以the professional development seminars为宾语,修饰anyone。故现在分词(C)attending最恰当。
第36题: [多项选择]下列关于肺表面活性物质的叙述,正确的有 A. 保持大、小肺泡的稳定性 B. 防止液体渗入肺泡 C. 成年人患肺炎时,可因此物减少而发生肺不张 D. 新生儿可因缺乏此物可发生“呼吸窘迫综合征” 参考答案:A,B,C,D 答案解析:肺表面活性物质可以:①防止液体渗入肺泡;②保持大小肺泡的稳定性;③成年人患肺炎时,可因此物减少而发生肺不张;④新生儿可因缺乏此物发生“呼吸窘迫综合征”。