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【简答题】
All pilots must be alert to the potential for midair collision and near midair collisions. The general operating and flight rules in 14 CFR part 91 set forth the concept of “See and Avoid.” This concept requires that vigilance shall be maintained at all times, by each person operating an aircraft regardless of whether the operation is conducted under instrument flight rules or visual flight rules. Pilots should also keep in mind their responsibility for continuously maintaining a careful lookout regardless of the type of aircraft being flown and the purpose of the flight. Most midair collision accidents and reported near midair collision incidents occur in good VFR weather conditions and during the hours of daylight. Most of these accident/incidents occur within 5 miles of an airport and/or near navigation aids. The “See and Avoid” concept relies on knowledge of the limitations of the human eye, and the use of proper visual scanning techniques to help compensate for these limitations. The importance of, and the proper techniques for, visual scanning should be taught to a student pilot at the very beginning of flight training. The competent flight instructor should be familiar with the visual scanning and collision avoidance information, pilots’ role in collision avoidance, and the Aeronautical Information Manual. There are many different types of clearing procedures. Most are centered around the use of clearing turns. The essential idea of the clearing turn is to be certain that the next maneuver is not going to proceed into another airplane’s flight path. Some pilot training programs have hard and fast rules, such as requiring two 90° turns in opposite directions before executing any training maneuver. Other types of clearing procedures may be developed by individual flight instructors. Whatever the preferred method, the flight instructor should teach the beginning student an effective clearing procedure and insist on its use. The student pilot should execute the appropriate clearing procedure before all turns and before executing any training maneuver. , are the most effective strategy for collision avoidance.
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举一反三
【单选题】不含酶的消化液是由哪种消化腺分沁的()
A.
肠腺
B.
唾液腺
C.
肝脏
D.
咦腺
【多选题】灌注桩的成孔方法是哪四种?
A.
套管成孔 灌注桩
B.
干作业成孔灌注桩
C.
泥浆护壁 钻孔桩
D.
人工挖 孔桩
E.
长螺旋打桩机成孔
【单选题】肝脏中含量较多的是( )
A.
LDH
B.
ALT
C.
AST
D.
CHE
E.
ALP
【多选题】正确的呼气的要领包括()
A.
快速把气吐完
B.
两肋慢慢地收回
C.
丹田用力托住气息
D.
两肋迅速收缩
【简答题】磷酸中检查吗啡:取本品0.1g,加盐酸溶液(9→10000)使溶解成5ml,加NaNO2试液2ml,放置15min,加氨试液3ml,所显颜色与吗啡溶液[吗啡2.0mg加HCl溶液(9→10000)使溶解成100ml] 5ml,用同一方法制成的对照溶液比较,不得更深。问其限量为多少?
【简答题】磷酸中检查吗啡:取本品0.1g,加盐酸溶液(9→1000)使溶解成5ml,加亚硝酸钠试液2ml,放置15分钟,加氨试液3ml,所显颜色与吗啡溶液[取无水吗啡2.0mg,加盐酸(9→1000)使溶解成100ml]5.0ml,用同一方法制成的对照液比较、不得变深,问限量为多少?
【单选题】磷酸可待因中检查吗啡:取本品0.1g,加盐酸溶液(9→10000)使溶解成5ml,加NaN02试液2ml,放置15min,加氨试液3ml,所显颜色与吗啡溶液[吗啡2.0mg加HCl溶液(9→10000)使溶解成100m1]5ml,用同一方法制成的对照溶液比较,不得更深。其限量为
A.
0.001
B.
0.002
C.
0.01
D.
0.02
E.
0.005
【单选题】不含消化酶的消化液是
A.
唾液
B.
胃液
C.
胆汁
D.
胰液
E.
小肠液
【简答题】A. 唾液 B. 胃液 C. 胆汁 D. 胰液 E. 小肠液 1. 不含消化酶的消化液是 2. pH 最高的消化液是 3. 含肠激酶的消化液是 4. 对脂肪消化最强的消化液是
【简答题】磷酸中吗啡的检查:取本品0.1g,加一定浓度盐酸溶液使溶解成5ml,加NaNO2试液2ml,放置15min,加氨试液3ml;所显颜色与5ml吗啡标准溶液(配制:吗啡2.0mg加盐酸溶液使溶解成100ml),用同一方法制成的对照溶液比较,不得更深。问磷酸中吗啡的限量为多少?
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