EDT对的各种存在形式与溶液的pH值有密切关系（）

此题为判断题(对，错)。

此题为判断题(对，错)。

EDTA滴定法的准备工作有：①建立水泥剂量与EDTA二钠消耗量之间的关系曲线;②对其它几种试样，用同EDTA滴定法的准备工作有：①建立水泥剂量与EDTA二钠消耗量之间的关系曲线;②对其它几种试样，用同法进行滴定;③取样，并测试其含水量;④吸取悬浮液，加入氢氧化钠和钙红指示剂;⑤准备5种试样，水泥含量从0~8%递增;⑥用EDTA二钠标准液滴定至纯蓝色，剂量EDTA二钠的消耗量;⑦试样中加入氯化铵溶剂搅拌后放置沉淀;⑧计算混合料的组成;正确的准备顺序是（）

A．③④⑦⑧⑥⑤②①

B．④⑦②⑧③⑥⑤①

C．⑤⑧③④⑥②①⑦

D．③⑧⑤⑦④⑥②①

B.He knocked down several mailboxes.

C.He tore down the companys main gate.

D.He did serious damage to a loaded truck.

* I wonder Michael walked the dog.

【C10】

A．talked

B．being talked

C．talked to

D．being talked to

影响¹⁵³Sm-EDTMP治疗骨转移癌疗效的因素不包括（）。

A. 原发肿瘤的类型

B. 患者年龄

C. 骨转移灶的表现形式

D. 除骨转移外，还伴有其它多脏器的转移

E. 长期应用止痛药物成瘾

A、lived in

B、returned to

C、visited

D、crowded into

It was suspected that Lucan killed the nanny because __________. 查看材料

A.she was cruel to his children

B.she attacked his car

C.she stole his car

D.she was mistaken for his wife