火源是指能够使可燃物与助燃物发生燃烧或爆炸的能量来源，常见的是热能、（）等。A.电能

第二节：语法填空（共10小题；每小题1分, 满分10分）

We eat for many different reasons but not always for the right reason. Most people choose to eat something just  26   the food tastes delicious.   27  , if we choose based   28   taste alone, regardless of nutrition(营养) or healthy eating habits, then gaining weight is inevitable. Changing your eating habits means   29   you need to look at the nutritional value as well as the amount of fat.

Healthy eating habits come from eating foods that are low  30   fat. Learn to read labels so that you can make good decisions; every   31   (package) food product has a label that tells you the nutritional value,   32   number of calories and fat content.

Eating habits usually stay the same as we grow from childhood to adulthood.  33  (fortune), our metabolism（新陈代谢）tends   34   (slow) down as we get older. If you are raised on sugar and high-fat foods, the amount of fat keeps building as you get older   35   the cycle is broken by good eating habits or exercise, and perfectly both.

心理评估的常用方法不包括

A．调查法

B．观察法

C．个案法

D．测验法

E．作品分析法

我国A公司以FOB 贸易条款出口一批货物到德国，合同签订后接到德国买方来电，称租船较为困难，委托A公司代为租船，有关费用由买方承担。为了方便合同履行，A 公司接受了对方的要求，但是时间已到了装运期，A公司在规定的装运期内无法租到合适的船泊，因此到装运期满时，货仍未装船。买方因销售旺季即将结束，便来函以A公司未按期租船履行交货义务为由撤销合同。请分析：买方是否有权解除合同，理由何在？

将成绩表复制为一张新工作表，将期末成绩在80分到89分的人筛选出来，并将工作表命名为“筛选”保存在EX6．XLS中。