It may be found that, in certain circumstances, Rader Beacon emissions can cause ____ with
A. unwanted interference
B. unexpected figures
C. abnormal data
D. unwanted information
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It may be found that, in certain circumstances, Rader Beacon can cause unwanted interference particularly ______.
A. at close range
B. at head on situation
C. at crossing situation
D. at end on situation
It is usually unnecessary,and indeed often impossible,______every printed clause.
A. to give rise to
B. giving give rise to
C. given give full effect to
D. to give full effect to
SS型人货两用施工升降机使用的瞬时式防坠安全装置一般由断绳保护装置和停层防坠落装置两部分组成。()
It is the responsibility of the crane operator to, at all times, be aware of the location
A. load
B. hook
C. boom
D. All of the above