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当前学科：锅炉辅机初级工技
题目：
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外观检查常用的检查方法（）。
A . A、肉眼观摩；
B . B、低倍放大镜检验；
C . C、焊口检测尺检验；
D . D、射线探伤检查；
E . E、超声波探伤检查。
答案：
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推荐知识点:
木工主要机具之一有：木工打眼机、刨削机、开榫机、（）以及多功能木工机具等。
烟叶检验的内容是（）。
Every country has traffic rules and signs, but are they the same? In most countries, there are street and road signs with 21________ about location,directions,dangers,cautions, and rules of the road. These 22 _________ tell drivers and pedestrians what to do and what not to do,including speed and parking 23 ________,places to stop,when to make turns,and other 24________.However, specific local traffic laws and practices usually differ around the world. For instance, in Japan, Indonesia, South Africa, the United Kingdom, and other countries ,steering 25________are on the right side of vehicles ,and cars and trucks drive on the left side of the road. In other 26 _________,such as the United States,Saudi Arabia,Italy, and Mexico,steering wheels are on the left side of vehicles ,and cars and trucks 27________on the right side of the road. An illustration of a local 28________law is the regulations for pedestrian and school 29 ________ in some Mexican cities:drivers rarely respect the rules,so for safety, people cross streets only at stop lights, on roads with little traffic, or on pedestrian-only 30 _________ across wide avenues.
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雨雪天和风速超过5m／s(气保焊2m／s)而未采取措施者不得焊接。气温低于－10℃时，焊接后应采取保温措施。重要部位焊缝(柱节点、框架梁受拉翼缘等)应用()，其余一般部位应用超声波抽检或磁粉探伤。
男，1个月，因"眼分泌物多2周，伴气促、阵咳1周"入院。查体：一般状态好，无发热，呼吸50次/分，双眼睑轻度浮肿，结膜充血，有较多脓性分泌物，阵发性单声咳，咳后继一短促的吸气，双肺听诊偶闻及湿性啰音，胸部X线检查示双肺间质性肺炎改变。该患儿最可能的诊断是（）
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If he ＿＿＿＿＿＿＿＿＿＿ tourists for his business, he would have to close his shop.