| Another critical factor that plays a
part in susceptibility to colds is age. A study done by the University of
Michigan School of Public Health revealed {{U}}particulars{{/U}} that seem to hold
true for the general population. Infants are the most cold-ridden group,
averaging more than six colds in their first year. Boys have more colds than
girls up to age three. After the age of three, girls are more susceptible than
boys, and teenage girls average three colds a year to boys’ two. The general incidence of colds continues to decline into maturity. Elderly people who are in good health have as few as one or two colds annually. One exception is found among people in their twenties, especially women, who show a rise in cold infections, because {{U}}people in this age group{{/U}} are most likely to have young children. Adults who delay having children u A. Minor errors. B. Specific facts. C. Small distinctions. D. Individual people. [单选题]120-1型控制阀滑阀f7限制孔为( )。
A.Φ1.2 mm B.Φ1.5mm C.Φ2.0mm D.Φ1.8mm [单项选择]治疗湿热黄疸应首选（）
A. 化湿法 B. 补肾法 C. 化瘀法 D. 建中法 E. 化痰法 [单选题]电流的基本单位是（ ）.
A.A.安秒 B.B.安培 C. C.库仑 D.D.千克 [单项选择]小儿腹泻脱水无明显循环障碍时，前8～12小时最合适的补液速度〔ml/（kg.h）〕是
A. 2～4 B. 5～7 C. 8～10 D. 11～13 E. 14～16 [单选题](单选题).形选色选机无法进行净选的药材是()。
A.叶类 B.花类 C.草类 D.以上都是 [单选题]平面网面不宜绷的过紧，当网面与作业面高度差大于（）m时，其伸出长度应大于4m。
A.2 B.3 C.4 D.5 [简答题] 1台空调机组有个回风温度传感器。(1.0分)
[单选题] 根据《国家地震应急预案》,()负责统一领导、指挥和协调全国抗震救灾工作。
A.国务院抗震救灾指挥部 B.地震局 C.减灾委 我来回答: 提交
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