石油产品的闪点与馏程有何关系？

下颌骨正中联合骨折中，内固定时应放置两块接骨板，两块板的间隔最好为（）

A.3mn

B.4mm

C.5mm

D.6mm

E.7mm

案例二： 一般资料：求助者，女性，57岁，初中文化程度，退休职工。 案例介绍：求助者半年多以前因胃痛要做胃镜检查，抽血检查发现感染了梅毒。求助者感到非常诧异，自己生活检点，且已经多年没有性生活了，不可能感染梅毒。求助者到多家医院做了检查，但结果都一样。三个多月前，女儿生了孩子，求助者害怕自己将梅毒传染给孩子，面对孩子时非常紧张，不敢抱孩子，给孩子换尿布时要戴双层手套，而且手抖得很厉害。求助者想见孩子，又怕传染孩子，为此以各种理由谢绝女儿女婿来家，即使来了也不留他们吃饭。面对这种情况，女儿有意见，丈夫也不理解。自己知道是怎么回事，但不好意思和女儿明讲。为此内心极其痛苦。近来没有胃口，吃不下饭，失眠，自己主动前来咨询。 心理咨询师观察了解到的情况：求助者服饰整洁，小时候家教很严，从小做事认真，做事要做到最好。丈夫反映求助者平时认死理，很较真。

本案例中求助者出现的躯体症状包括（）。

A．紧张

B．情绪低落

C．手抖

D．食欲下降

偏差程度是指费用实际值与计划值的偏离程度，其表达式为( )。

A．费用实际值/费用计划值
B．累计费用实际值/累计费用计划值
C．已完工程实际时间/已完工程计划时间
D．(费用实际值-费用计划值)/费用计划值

下列关于税务登记管理的规定中，正确的是（）。

A.从事生产经营的纳税人领取工商营业执照的，自领取工商营业执照之日起30日内，向生产经营所在地税务机关申报办理税务登记

B.有独立的生产经营权、在财务上独立核算并定期向发包人或者出租人上交承包费或租金的承包承租人，自承包承租合同签订之日起30日内，向承包承租业务发生地税务机关申报办理税务登记

C.从事生产经营的纳税人未办理工商营业执照但经有关部门批准设立的，自批准设立之日起15日内，向生产经营所在地税务机关申报办理税务登记

D.境外企业在中国境内承包建筑、安装、装配、勘探工程和提供劳务的，应当自工程或劳务开始之日起30日内，向项目所在地税务机关申报办理税务登记

E.从事生产、经营的纳税人外出经营，自其在同一县（市）实际经营或提供劳务之日起，在连续的12个月内累计超过180天的，应当自期满之日起30日内，向生产、经营所在地税务机关申报办理税务登记

Customs officers at a London airport yesterday found $500000 worth of drugs which were being smuggled into Britain in boxes marked "Urgent Medical Supplies. " The (51) might have suspected for some time that the drugs were being brought into the country in this way. The (52) is believed to be the work of a well-organized international group. Four men were arrested at the airport and held for questioning, (53) it is unlikely that they are organizers. In fact, they declared that they were (54) of what the boxes contained and had acted in good faith in bringing (55) into Britain. This is the third time in six months that attempts have been made to smuggle (56) goods through Customs by declaring them to be medical supplies. They are frequently (57) in special containers and a warning is given that they may be (58) if they are not handled with care. They are determined to put a (59) to this practice, said one of the Customs officers today. (60) is no way these people are going to get away with this any longer. We have the full cooperation of the International Police who are as anxious as we are to track down the main source of supply.

52（）。

A.operation 

B.behavior 

C.movement 

D.development