【简答题】我会排列。 1.4米,4厘米,4毫米,4分米 _________________________________ 2.400毫米,4米,30分米,30厘米 _________________________________
【判断题】紫外一可见吸收光谱是分子中电能能级变化产生的,振动能级和转动能级不发生变化。
【简答题】300米3000毫米3千米30厘米.______.
【简答题】在横线里填上合适的小数. 30毫米=______米 30平方厘米=______平方分米.
【判断题】“老龄化”问题将抬高医药市场、丧葬市场、养老服务市场等。
【简答题】1 厘米=( )毫米 2 厘米 = ( )毫米 1 分米=( )厘米 30 厘米 = ( )分米 1 米=( )分米 60 分米 = ( )米
【单选题】Current macroeconomic models use microeconomic principles because
A.
they use the same language for all economists.
B.
they highlight the sociological aspects of production.
C.
the behavior of economic agents changes with policy.
D.
we live in a democratic society and everybody has a say.
【简答题】在横线里填上“>”、“<”或“=”. 40分米______40厘米 3分米______20厘米 52分米______520厘米 27厘米______30毫米.
【单选题】Important characteristics of macroeconomic models include allof the following except:
A.
simplifying assumptions.
B.
functional relationships based on controlled experiments.
C.
endogenous and exogenous variables.
D.
implicit or explicit consistency with microeconomic foundations.