以碳酸钙为基准物标定EDTA时,为使终点变色明显,必须加入镁溶液。
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Under her leadership, the group’s ______ grew from less than one million dollars to more than ten million.
A. data
B. budget
C. item
D. piece
Her friend knows where he can ______ a good used car for her at a reasonable price.
A. choose
B. pick out
C. pick up
D. reach
Information and knowledge in IT industry ______ very fast.
A. outdated
B. keeps
C. releases
D. updates
You can stay at my cottage in the country ______ you like.
A. whatever
B. whenever
C. wherever
D. whoever