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【单选题】
-How much is _______ for a schoolbag? -Experts say students should carry_______ more than 10 or 15 percent of their body weight． [ ]A.
far more; no
B.
too much; not
C.
very much; any
D.
many more; much
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【单选题】The author's purpose in writing the passage is to ______.
A.
indicate the way genetic testing works
B.
show the power of one's genetic makeup
C.
introduce genetic testing and its function
D.
reveal the influence of environment on genes
【单选题】The passage is intended to______.
A.
make readers have a better understanding of gene testing
B.
show that scientists are worrying about the negative side of gene testing
C.
tell readers that as more gene tests appeared, more disease genes can be discovered
D.
reveal the rapid development of new scientific knowledge
【单选题】有程序如下: function fout=testin(a,b,c,d) if nargin==1 fout=a; elseif nargin==2 fout=a^2+b^2; elseif nargin==3 fout=a+b*c; elseif nargin==4 fout=sqrt(a^2+b^2+c^2+d^2); end 则命令窗口输入 fout=testin(2,2,2,2) 时,输出...
A.
2
B.
4
C.
6
D.
8
【单选题】Commodity inspection may serve as the basic evidence for ( ) trade disputes.
A.
testing
B.
inspecting
C.
resolving
D.
making
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