【单选题】Mary is a clever gir, __________ she?
【简答题】温度测量仪表可分为()测温仪表和()测温仪表两大类。
【简答题】调查中搜集数据的方法主要有自填式、面访式、电话式、除此之外的方法有_________.
【单选题】The lions in the Gir Forest are especially vulnerable to disease because they ______.
A.
have descended from a dozen or so ancestors
B.
are smaller than the African lions
C.
do not have enough to cat
D.
are physically weaker than the African lions
【简答题】调查中搜集数据的方法主要有自填式、面访式、电话式。除此之外,还有哪些搜集 数据的方法?