【单选题】frequency
A.
The pilot is asking for frequency conversion.
B.
The controller is checking radio.
C.
The pilot is trying to make contact with Shenyang.
D.
The controller is correcting the frequency.
【单选题】To convert a frequency distribution to a relative frequency distribution:
A.
divide the class frequency by the total number of observations.
B.
divide the lower limit of the first class by the class interval.
C.
find the difference between consecutive lower class limits.
D.
multiple the class frequency by 100.
【单选题】( )的发表,标志着路遥小说创作走向成熟。
【单选题】The frequency 121.5MHz is _______.
A.
a dedicated EPIRB frequency
B.
an aeronautical frequency, but it is an optional frequency in EPIRB
C.
an aeronautical frequency only
D.
a dedicated aeronautical VHF frequency only
【判断题】在影院中,边看电影边吃东西是不合理的。 ()
【判断题】中篇小说《人生》的发表,标志着路遥小说创作走向成熟。
【单选题】夏末,某养殖户地面圈养的2000只三黄鸡,在10周龄后出现精神萎顿,食欲不振至废绝,腹泻,排出大量深褐色带黏液的粪便。迅速死亡,-周内死亡率达15%下列疾病中最不可能的是(2016真题下132)
【单选题】夏末,某养殖户地面圈养的2000 只三黄鸡,在10 周龄后出现精神萎顿,食欲不振 至废绝,腹泻,排出大量深褐色带黏液的粪便。迅速死亡,一周内死亡率达15%。确诊该病,首先应采用的检查方法是
【单选题】夏末,某养殖户地面圈养的2000只三黄鸡,在10周龄后出现精神萎顿,食欲不振至废绝,腹泻,排出大量深褐色带黏液的粪便。迅速死亡,一周内死亡率达15%。下列疾病中最不可能的是()