【单选题】Operators of computers should give instructions to work in the form. of program______.
A.
which are introduced to turn into computers
B.
through which computers could process 'language'
C.
which could tell computers what to do and how to do it
【单选题】36岁经产妇,孕32周,水肿1周,血压150/100mmHg,宫高26cm,胎心144次/分,水肿(++),尿蛋白(++)。 轻度妊娠高血压综合征
【单选题】How many GMDSS operators are needed/required on board according to the provisions of the International Convention for the Safety of Life at Sea,1974?______.
【单选题】How many operators are needed/required on board according to the provisions of the International Convention for the Safety of Life at Sea,1974? ______.
【简答题】When tour operators lower their price, they may ______.
【单选题】大湖效应指的是冷空气遇到大面积未结冰的水面(通常是湖泊)并从中得到水蒸气和热能,然后在湖泊迎风岸形成雨、雪、雾等现象(见图)冷气团与水面的温差较大时,水温越高,冷气团温度越低,冷气团的水汽就越多,雪量就越大。据此完成下列问题。 有关大湖效应叙述正确的是
A.
大湖效应是冷锋过境造成的强降雪天气,降雪的主要时期是乙图中的④
B.
大湖效应产生的降雪过程原理与冷锋形成过程相同