一申请单位对同一品种、同一输出国家或者地区、同一加工、使用单位一次只能办理1份《进境

某工程施工到4月15日时发生了设计变更，由于合同中没有适用或类似于变更工程的价格，承包人在4月30日提出的变更工程价款的报告中自行确定了变更价格，按《建设工程施工合同(示范文本)》规定，( )。

A．由工程师确定变更价格，经业主确认后执行

B．由承包人或发包人提出适当的变更价格，经双方确认后执行

C．承包人确定的工程价款变更视为无效

D．承包人确定的变更价格，经业主确认后执行

阅读下面短文并回答问题，然后将答案写到答题卡相应的位置上(请注意问题后的词数要求)。

[ 1 ] Do you spend over an hour each day texting messages to your friends? Do you frequently ignore work, study, and other activities to check your phone for messages? Are you anxious and restless if you are separated from your mobile phone,9 Do you hardly ever use your phone to talk any more, and do your thumbs hurt from texting too much?

[2] If                   , then it is very possible that you are a textaholic. A textaholic can be defined as someone who is addicted to sending and receiving messages. The main symptoms are a strong desire to text messages, which takes precedence (优先)over everything else, and bad moods, low spirits and a lack of self-confidence if messages fail to come in. The root of the problem, as with many addictions, is the desire to escape from emotional difficulties such as stress, atrxiety and relationship problems. Experts warn that text addiction is likely to become the most common form of addiction in the future, especially among the young.                                    

[3] So what can you do if you think you may be a textaholic? The key is to get your life back in balance. Make sure you resist the urge to answer every message you receive, and consider leaving your mobile phone behind occasionally when you go out. Most importantly, make a point of spending quality time with friends and family, and make time to re-learn the art of face-to-face conversation instead of conducting your relationships by means of text messages. Not only will you save time and money, but you may also rediscover the pleasure of true communication.

小题1: How does the author introduce the topic of the text? (no more than 5 words)

小题2: Fill in the blank in Paragraph 2 with proper words. (no more than 8 words)

小题3:What emotional difficulties may be the causes of text addiction? (no more than 5 words)

小题4:What do experts say about text addiction? (no more than 14 words)

小题5:What is the main idea of Paragraph 3? (no more than 8 words)

有害因素是指能影响人的身心健康，导致疾病（含职业病）的，或能对物造成慢性损坏的因素。

宫底在脐耻之间

A．孕16周
B．孕20周
C．孕28周
D．孕26周
E．孕10周

人的成熟体细胞是单能细胞。