渠沟齐平相交,经论证洪水可入渠,但应在渠道一侧适当位置设置溢洪侧堰。
参考答案:对
We have realized ________ she is expecting is just an opportunity to test her ability.
A.that
B.which
C.what
D.where
环境致癌因素包括()。
A.生物致癌因素
B.物理致癌因素
C.化学致癌因素
D.以上均是
E.以上均不是