因为
对第一段中“光是生命活动所必需的刺激信号”的理解，不正确的一项是（ ）
对第一段中“光是生命活动所必需的刺激信号”的理解，不正确的一项是（ ）
纸币是由国家（或地区）发行的、强制使用的价值符号。对“使用”应这样理解（ ）。
纸币是由国家（或地区）发行的、强制使用的价值符号。对“使用”应这样理解（ ）。
Practice 13 (1) Actually, the world’s birth rate is falling. But so is death rate, as medical advances have made it possible for man to live longer than before. Such advances have also reduced baby death rate. (2) Unless population growth is reduced, the
Practice 13 (1) Actually, the world’s birth rate is falling. But so is death rate, as medical advances have made it possible for man to live longer than before. Such advances have also reduced baby d
浙江温州市把个体、私营经济当作富民强市的主力军，因为发展个体、私营经济（ ）。①有利于扩大就业②对提高国家的综合实力具有决定作用③有利于增加劳动者个人收入④有利于国家财政增收
浙江温州市把个体、私营经济当作富民强市的主力军，因为发展个体、私营经济（ ）。①有利于扩大就业②对提高国家的综合实力具有决定作用③有利于增加劳动者个人收入④有利于国家财政增收
Our company’s visitors decided to stay in our city for _____ two days as they wanted to have a look around.
Our company’s visitors decided to stay in our city for \_\_\_\__ two days as they wanted to have a look around.