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当前学科:矿山测量工
题目:
单选
观测支导线的转折角时,必须测()。
A . 内角
B . 左角
C . 右角
D . 左角和右角
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Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light” beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts: for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight,” says York Onnen, program director of the President’s Council on Physical Fitness and Sports. Still, exercise’s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary (极少活动的) and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year’s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight. Some people dislike exercise because ()
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患者25岁,男,左足趾间瘙痒伴小丘疹、水疱2个月,未予治疗,昨日突发左侧足背、小腿红肿、疼痛。体检:T38.5℃,左足趾间针头大小丘疹,水疱伴轻度糜烂。右足正常。左足背至胫前大片红斑,轻度肿胀,紧张发亮,可见张力性小水疱,皮温高、触痛,左腹股沟可扪及肿大淋巴结。WBC12.5×10/L,N80%。治疗该患者应首选的药物是以下哪种()