题目内容
听力原文：W: Jack said he can give us a ride to the game.
M: Oh, good, then he does have his car.
What does Jack have？
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患者，女，30岁。8个多月来月经量增多，1周来皮肤瘀斑伴牙龈出血，不挑食，无光过敏和口腔溃疡。查体：脾侧位肋下刚触及。化验血Hb 85g/L，RBC 4.0×1012/L，WBC 5.1×109/L，PLT 25×109/L，尿常规(-)。骨髓检查：粒红比例正常，全片见巨核细胞138个，其中产板型4个。
最可能的诊断是
Without proper planning, tourism can cause problems. For example, too many tourists can(面性)crowd public places that are also enjoyed by the inhabitants of a country. If tourists create too much traffic, the inhabitants become annoyed and unhappy. They begin to dislike tourists and to treat them impolitely. They forget how much tourism can help the country’s economy. It is important to think about the people of a destination (目的地)county and how tourism affects them. Tourism should help a country keep the customs and beauty that attract tourists. Tourism should also advance the well-being (health and happiness) of local inhabitants.
Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to work in the tourism industry, This means that other parts of the country’s economy can suffer. On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose money.
It costs a great deal of money to build large hotels, airport, air terminals, first-class roads, and other support facilities (设施) needed by tourist attractions. For example, a major international-class tourism hotel can cost as much as 50 thousand dollars per room to build. If this room is not used most of the time, the owners of the hotel lose money.
Building a hotel is just a beginning. There must be many support facilities as well, including roads to get to the hotel, electricity, sewers (阴沟) to handle waste and water. All of these support facilities cost money. If they are not used because there are not enough tourists, jobs and money are lost.
Which do you think has most probably been discussed in the paragraph that goes before this passage？
渗出性心包炎与缩窄性心包炎的主要鉴别点是
上述呼吸链氧化还原对中，参与构成呼吸链复合体Ⅱ的是
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