因到期时间长短不同而形成的利率差别为（） ["纯利率","到期风险附加率","违约风险附加率","附加率"]
煤中水分每增加1%，焦炉的结焦时间会（） ["不变","缩短20~30分钟","延长20~30分钟","延长1小时以上"]
人类基因组的结构特点包括（）。 ["基因进化","基因数目","基因重复序列","基因组复制"]
总线型网络、星型网络是按照网络的（）来划分的。 ["覆盖范围","传输介质","使用性质","拓扑结构"]
After an IOPP Certificate is issued to an inspected vessel，how many other surveys of the vessel’s pollution prevention equipment are conducted during the period of validity of the certificate?（） ["None","One","Two","Three"]
简述CN1～CN7的功能与连接。
