以天然气为原料的氨厂、进入甲烷化炉的气体中，H2S有害物质浓度少，选择高活性J105催化剂，可以提高甲烷化炉处理能力。
参考答案：对
______ can be seen from his face, my father is quite satisfied with my final scores.
A．That
B．As
C．It
D．Which
成年人P-R间期正常值是（）
A.0.11～0.20s
B.0.12～0.20s
C.0.08～0.20s
D.0.10～0.20s
E.0.06～0.10s
