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张某，50岁，结肠癌，行手术治疗，下列做法错误的是（）
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小丽家里烧开水的水壶具有一个突出的特征，在壶嘴处有一个小鸟的形象，水烧开时小鸟便发出叫声提醒人们注意。则（）
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脑梗死灌注图像分为（）型、（）型、（）型、（）型、（）型等。
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河流中水面出现有紊乱或呈鳞片状的水称为（）。
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装载货物超过机车车辆限界的车辆，允许编入列车。
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老年男性，考虑前列腺增生症进行尿流动力学检查，提示梗阻严重的最大尿流率为（）。
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综合自然区划
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根据材料，完成题。 Fitness Movement The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise.Millions of individuals became engaged in a variety of aerobic activities, and51thousands of health spas developed around the country to capitalize on his52interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed53to this aerobic fitness movement, even a national chain with spas in most major cities. However, their54was not on aerobics, but rather on weight-training programsdesigned to develop muscular mass, 55, and endurance in their primarily male56. These fitness spas did not seem to benefit57from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs58few, if any, health benefits. In recent years, however, weight training has again become increasingly. 59for males and for females. Many60programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.61, most physical fitness tests have usually included measures of muscular strength and endurance, not for health related reasons, butprimarily62such fitness components have been related to performance in athletics.63, in recent years,evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health64as well. The American College of Sports Medicine now65that weight training be part of a total fitness program for healthy Americans.请在第__(51)__处填上正确答案。
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单体液压支柱的初撑力，柱径为100mm的不得小于（）KN。