【多选题】以下关于主要生态系统灾害监测说法正确的是().
A.
土地荒漠化监测主要在华北、东北、西北等地区,开展植被覆盖度、生物量、土壤质地、土壤持水能力等方面的监测
B.
水土流失监测主要在晋陕蒙接壤区、豫陕晋接壤区、三峡库区、长江上游、黄河中游、珠江上游等地区,开展日照、温度、降水、风向风速、降水强度、蒸发量等气象因子的监测
C.
土地风蚀监测主要在我国西北、内蒙的荒漠和植被稀疏的草原、黄土高原等地区,利用点面相结合的方法开展监测
D.
土地荒漠化监测和水土流失监测都要开展植被覆盖度和土壤质地监测
【单选题】以下有关自愿呈报系统监测ADR的特点的叙述中,对临床用药最有实践意义的是()
【单选题】Income and education both ______ in determining one's smoking habit.
【单选题】以下有关自愿呈报系统监测ADR的特点的叙述中,最有实践意义的是()
【单选题】若有定义int x=0,*p=&x;,则语句printf('%d/n',*p);的输出结果是 ______。
【单选题】Why did the MTV Networks' spokeswoman say the number of freelancers was unclear?
A.
The figure rises and falls all over the year.
B.
The company wants to keep it as a secret so that they can better stand the protest.
C.
As they are only freelancers, their payrolls are not included in the financial system of the company.
D.
They do not want to treat freelancers the same as full-time employees.
【多选题】大气边界层探测系统是中小尺度范围内的探测系统,其总体构成应包括().
【单选题】以“茶香、水甜、鱼头鲜”三大特色而闻名遐迩的是()