到20世纪末，我国人民生活 [ ]
A．解决了温饱问题
B．总体上达到小康水平
C．达到了全面小康
D．比较富裕
答案：B
50m3=______dm3
30cm3=______dm3
1.3L=______mL
240mL=______L=______dm3
0.2m2=______dm2
80cm=______m．
"Re-administration" in this passage refers to giving ______.
A．the test again to people without administering beta blockers
B．the test again to both groups after beta blockers have been administered to one group
C．the test to both groups of test-takers and then giving them beta blockers
D．the beta blockers without retesting
