______ policy makers struggle to define and implement appropriate legislation, development
As long as
B. As
C. Even
D. While
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Around a thousand years ago, one group emerged______was uniquely well adopted to cope with
A. that
B. what
C. it
D. there
抗震设防地区，在墙体内设置拉钢筋一般要求沿墙高每 500mm 设 置一道。()
There is ______ the fact that the new method has greatly raised labor productivity.
A. not denying
B. no denying
C. not to deny
D. not to be denied
There has not been a great response to the sale, ______？
A. does there
B. hasn"t it
C. hasn"t there
D. has there
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