目前用粉煤灰制备的化肥品种较多,主要有()
A.硅钾肥
B.硅钙钾肥
C.粉煤灰磁化肥
D.粉煤灰磷肥
E.粉煤灰氮肥
参考答案:A, B, C, D
She is organized, friendly to people, hard-working and clever. _______, I can’t speak too highly of her.
A.In other words
B.In a word
C.As a result
D.In addition
男,45岁,反复胸痛2年,伴烧心、反酸,胃镜见食管下段多发性黏膜糜烂和溃疡。则对该患者的最佳治疗方案应是()
A.抗酸药+促动力药
B.H受体拮抗药+促动力药
C.质子泵抑制药+促动力药
D.内镜治疗
E.手术治疗