We can come to the conclusion that______.
A. 60 percent of American children are now born illegitimately
B. at least 50 percent of black children are now born illegitimately in America
C. 60 percent of American children were born illegitimately in the 1960s
D. at least 60 percent of American children were born illegitimately in the 1960s
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下列叙述中错误的是______。
A. 计算机不能直接执行用C语言编写的源程序
B. C程序经C编译后，生成后缀为.obj的文件是一个二进制文件
C. 后缀为.obj的文件，经连接程序生成后缀为.exe的文件是一个二进制文件
D. 后缀为.obj和.exe的二进制文件都可以直接运行
能较好反映。肾小球滤过功能的检测指标是
A. 血尿素氮(BuN)
B. 血清肌酐(SCr)
C. 肌酐清除率(CCr)
D. 尿溶菌酶
E. 尿NAG和γ-GT
The example of Arpad Pusztai is used to illustrate ______.
A. public ignorance of the potential risks in GE food
B. the role of TV in publicizing scientific knowledge
C. the importance of scientific findings to scientific research
D. the threat faced by independent science
What effect does joblessness and cuts in public assistance have on children of single - parent families
Another 3 million of them live in poverty.
B. The number of them increased by about 20 percent in just three years.
C. The number of them increased by about 3 percent in the 1980s.
D. They were not affected at all.
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