问题
单项选择题
根据《海上交通安全法》，下列叙述哪项有误（）。
A．遇难船舶的所有人、经营人应采取一切有效措施组织自救
B．船舶、设施发生的交通事故应由主管机关查明原因，判明责任
C．中国籍国际航行船舶进出我国港口必须办理进出港签证
D．船舶应当按照标准定额配备足以保证船舶安全的合格船员
答案
参考答案：C
搜题请搜索小程序“爱下问搜题”
根据《海上交通安全法》，下列叙述哪项有误（）。
A．遇难船舶的所有人、经营人应采取一切有效措施组织自救
B．船舶、设施发生的交通事故应由主管机关查明原因，判明责任
C．中国籍国际航行船舶进出我国港口必须办理进出港签证
D．船舶应当按照标准定额配备足以保证船舶安全的合格船员
参考答案：C
Not long ago, I made up my mind to read a lot of books to get more knowledge. So I went to the library and 36 happily with several books. But after a few days, I felt impatient. The 37 of finishing all of them seemed impossible, because I always found it 38 to calm down to read a whole book. I didn’t know what to do with it. Then 39 one day I thought of "Why not make reading fun?" It gave me 40 again. Reading is a journey of spirit. Every time we read a book, we are actually talking 41 the writer. I tried to put all my effort into his or her books, 42 I could feel all of his or her happiness and suffering. Now books have become a part of my life. See? Attitude (态度) can make a great 43 . Someone once said,"Even though the situation is bad, people still have one freedom ( 自由) to 44 their attitude. "So,don’t complain about study or work. It helps 45 . Try to see things from a different way. Believe me; this will change the situation and help you a lot.
|
饮酒会使人的中枢神经系统过度兴奋或麻痹抑制，容易引发交通事故．2011年5月1日开始，《刑法修正案》和修改后的《道路交通安全法》开始实施，对醉酒驾车者一律刑事拘留．下表是国家对“饮酒驾车”和“醉酒驾车”的界定标准：
| 饮酒驾车 | 20毫克/100毫升≤血液中的酒精含量＜80毫克/100毫升 |
| 醉酒驾车 | 血液中的酒精含量≥80毫克/100毫升 |
（2）交警通常用一种“酒精检测仪”检查司机呼出气体中酒精的含量，其反应原理为：C2H5OH+4CrO3+6H2SO4=2Cr2（SO4）3+2X↑+9H2O，反应中红色的CrO3转变为绿色的Cr2（SO4）3，则X的化学式为______．
A．CO2 B．SO2 C．O2 D．H2
（3）乙醇（C2H5OH）俗名酒精，由______种元素组成，其中碳、氧两元素的质量比为：______．