消除水中悬浮物粘结在冷却壁内壁上的方法是或()。
A.清洗
B.砂洗
C.酸洗
D.过滤
参考答案:A, B
甲亢危象的治疗,下列哪组最理想()
A.丙基硫氧嘧啶+碘剂+心得安+强的松
B.丙基硫氧嘧啶+强的松
C.他巴唑+心得安+强的松
D.丙基硫氧嘧啶+心得安+他巴唑
E.碘剂+他巴唑
—When did you last hear _____ Jay?
—He phoned me this morning, and we agreed____ a time and place to meet.
A.of, to
B.about, with
C.from, with
D.from, on