【单选题】
The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise. Millions of individuals became {{U}} (1) {{/U}} in a variety of aerobic activities, and {{U}} (2) {{/U}} thousands of health spas {{U}} (3) {{/U}} around the country to capitalize on this {{U}} (4) {{/U}} interest in fitness, particularly aerobic dancing for females.A、number of fitness spas existed {{U}} (5) {{/U}} to this aerobic fitness movement, even a national chain with spas in most major cities. However, their {{U}} (6) {{/U}} was not on aerobics, {{U}} (7) {{/U}} on weight-training programs designed to develop muscular mass, {{U}} (8) {{/U}}, and endurance in their primarily male {{U}} (9) {{/U}}. These fitness spas did not seem to benefit {{U}} (10) {{/U}} from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs {{U}} (11) {{/U}} few, if {{U}} (12) {{/U}}, health benefits. In recent years, however, weight training has again become increasingly {{U}} (13) {{/U}} for males and for females. Many {{U}} (14) {{/U}} programs focus not only on developing muscular strength and endurance but on aerobic fitness as well. {{U}} (15) {{/U}}, most physical-fitness tests have usually included measures of muscular strength and endurance, not for health-related reasons, but primarily {{U}} (16) {{/U}} such fitness components have been related to {{U}} (17) {{/U}} in athletics. {{U}} (18) {{/U}}, in recent years, evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health {{U}} (19) {{/U}} as well. TheAmericanCollege of Sports Medicine now {{U}} (20) {{/U}} that weight training be part of a total fitness program for healthyAmericans.
A．something
B．some
C．anything
D．any
网考网参考答案：D
网考网解析：[解析] “any”。原文是if引导的条件句，“any”用于条件句中，表示“一点，若干，一些”，与原文意思一致。而选项A、B、C是本题的干扰，不符合题意。
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