[单项选择]心动周期的次序排列应该是() A. 快速射血期、减慢射血期、等容收缩期、快速舒张期 B. 等容收缩期、快速射血期、减慢射血期、等容舒张期 C. 等容收缩期、减慢射血期、快速舒张期,等容舒张期 D. 等容舒张期、快速舒张期、快速收缩期、等容收缩期 E. 减慢射血期、等容舒张期、等容收缩期、快速射血期
第3题: [多项选择]1. 许多网吧向未成年人开放 2. 例举这一现象的危害并分析原因 3. 提出建议,希望引起重视 参考答案:[范文] Dear mayor, [A]I’m writing to tell you a serious phenomenon near my campus:there are a big number of Internet cafes near the campus,[B]most of which open to teenagers. [C]In those cafes,most school kids play Internet games of chat on QQ or MSN, or even visit some porn websites. [D]Some underage Internet addicts turn to the visual world for fun and gradually are unwilling to face reality,[E]which has a bad effect on their studies and health. [F]As I know, the minors are not allowed in Internet cafes [G] In order to keep the under-AH crowd away from Internet cafes,identity cards are required to get in [H]However, many Internet cafes are not strict with the policy because of the profit motive.[I] so many teenagers are still sneaking in with the majority of the young people developing addiction there. in my opinion,there should be better supervision of Internet cafes.[A0]Those that open to teenagers should be severely punished—even shut down. [AA]Thank you for taking time from your fight schedule to read my words.I sincerely hope this letter may draw you attention to the seriousness of the problem. Earnestly Yours, Jane 答案解析:[解析] [1]开门见山,说明写信的用意。 [3]三个并列结构清楚地说明了学生在网吧里的情况,even表达了意思的递进。 [4]underage“未成年的”,addicts
第4题: [单项选择]根据刑法规定,对于连续犯追诉期限的起算,是从( )。 A. 实施犯罪预备行为时起算 B. 着手实行犯罪时起算 C. 犯罪行为连续状态终了之日起算 D. 犯罪行为既遂时起算 参考答案:C 答案解析:[解析] 根据我国刑法的规定,追诉时效的起算点是犯罪之日,如果犯罪有连续或者持续状态的,应当自犯罪的连续或者持续状态结束之日起计算。故选C项。
第10题: [单项选择]一般新生儿用药量宜少,间隔时间应适当延长的药是() A. 戊巴比妥 B. 新生霉素 C. 吲哚美辛 D. 喹诺酮类药物 E. 氨茶碱 参考答案:C 答案解析:胆红素代谢过程中肝细胞膜上特异性受体能摄取未结合的胆红素,并由载体蛋白将其转运至内质网,在葡萄糖转移酶的催化下与葡萄糖醛酸结合成结合型胆红素。新生霉素具有抑制葡萄糖醛酸转移酶的作用,使血液中的游离胆红
第37题: [单项选择]某城市桥梁工程由某路桥工程公司承担施工任务。 该路桥工程公司在预应力筋的施工过程中,通过计算确定了下料长度,并采用先张法对预应力筋进行张拉,并对施加预应力所用的机具设备及仪表设置专人使用管理,并制定定期维护和校验制度。 预应力材料必须保持清洁,在存放和搬运过程中应避免机械损伤和有害的锈蚀。如进场后需长时间存放时,必须安排定期的( )。 A. 外观检查 B. 硬度检验 C. 静载锚固性能试验 D. 动载锚固性能试验 参考答案:A