矿渣水泥中粒化高炉矿渣的掺量使20~40%。
参考答案：错
The Iranian government is accused of some terror organizations in the Middle East by the United States, who can’t not produce firm evidences to prove it．
A．sponsoring
B．providing
C．offering
D．supplying
只能生酮的氨基酸是
A．亮氨酸B．甘氨酸C．谷氨酸D．苏氨酸E．色氨酸
