7岁的小儿，因体格检查中发现胸部有杂音，胸部透视心脏大小正常，肺纹理增强，下列处理正确的是（　）

[问答题]Practice 7　　Average household debt in the United States is currently 130 percent of average household income. The U. S. household savings rate is close to zero. Consumer confidence has plummeted with the value of 401(k) plans and retirement nest eggs. Car sales are at a fifteen-year low. And credit card defaults look like the next shoe to drop as cash-strapped Americans have run up credit card debt to postpone the day of reckoning.　　Too many Americans have been expressing the Dream through the acquisition of stuff. Americans need a refresher course on the American dream. The Constitution speaks of life, liberty, and the pursuit of happiness, not an automatic chicken in every pot. The American Dream embraced by immigrants over the past two centuries has been the opportunity to set one’s own goals and pursue them honestly to the limits of one’s ambition and ability. Too many Americans have been expressing the Dream through the acquisition of stuff. Others see the Dream as raising a family in a land that delivers Franklin Roosevelt’s four freedoms. Still others dream of their children accessing the highest possible level of education, living healthy lives, being good citizens in their communities.

[判断题]与出质人协商一致，贷款人提前兑现或提前支取的，只需向存款行提供单位定期存单、质押合同。（）

[单选题]儿童外伤中，环椎前结节后缘与枢椎齿状突前缘的距离大于4mm，则说明（）

[单选题]急性脾破裂时会出现剧烈左上腹痛并向下列哪个部位放射（）

[填空题]硅整流器在正常工作时，每个整流元件的正向电压降不大于（）。

[多选题]桃源洞森林公园内有哪些国家级一级保护树种（）。

[单选题]患者，女性，54岁。因频繁出汗、心悸、紧张、怕热、胃口增加和体重减轻2月余而就诊。最可能的诊断是（）。

[单选题]机舱前后的舱壁采用（）；首尾尖舱的舱壁采用（）。

[单选题]防止电力机车误入无网区的措施：单机转线时，应问清进路，作好防误进无电区的预想和呼唤应答。注意确认（）标志，在枢纽站场锚段关节禁停区内严禁停车。

[单选题](07年真题)在我国企业生产的产品中，外购的材料、零部件等所占的比例较大，机械产品一般占(    )