【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 eat
D.
are physically weaker than the African lions
【单选题】The gir is smart and clever; __________.
【简答题】温度测量仪表可分为()测温仪表和()测温仪表两大类。
【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?