血栓

患者下颌磨牙银汞充填后，要求全冠修复。检查所见近中面大面积银汞充填，固位力及抗力均较差，叩痛(-)，无松动，牙龈组织正常。

如果采用铸造全冠修复，牙体制备时应将面均匀磨除（）。

A．0.3～0.5mm

B．0.6～0.7mm

C．0.8～1.0mm

D．1.2～1.4mm

E．1.5～2.0mm

患者男，63岁，上颌全牙列缺失，散在骨尖。下颌多数牙缺失，仅余，近中舌侧倾斜，牙槽嵴丰满，间距离正常

修复前应做的是（）

A．拔除

B．牙槽骨加高术

C．唇颊沟加深术

D．去除骨尖

E．以上都不是

下图是尿液形成示意图，请据图回答：

（1）图中[1] 、[2] 、[3]合称为                  。图中B处液体称为              。

（2）下列物质能被[3]重吸收的有              。

A．水B．葡萄糖C．尿素D．无机盐    

（3）如果血液中葡萄糖浓度过              （填“高”或“低”），就会有一部分随尿液排出，形成糖尿。糖尿病的原因一般是           分泌不足引起的，因而对该类糖尿病患者可通过注射这种激素制剂来治疗。

《海的女儿》中，小公主用什么换了巫婆的药水（）

A.眼睛

B.舌头

C.灵魂

D.头发

Do p electric currents, by means of the electromagnetic fields that accompany them, cause cancer in people who live and work nearby Telephone line workers, who work near such currents every day, can provide a test case. They show elevated levels of brain cancer; therefore, the hypothesis of electromagnetic causation is supported.
Which of the following, if true, most seriously weakens the argument

A．Burying power lines and other measures to protect the public from such electromagnetic fields would be prohibitively expensive.

B．Telephone line workers are exposed to levels of chemical solvents high enough to cause brain cancer.

C．High exposure to p electromagnetic fields is correlated with a slightly higher-than-normal incidence of childhood leukemia, which is a form of cancer.

D．Public health officials who found that a group of different illnesses in people living near a power substation could not reliably be attributed to its electromagnetic field were accused of covering up the facts.

E．(E) Telephone line workers, like most people have electrical appliances at home, and most electrical appliances, when turned on, are surrounded by an electromagnetic field of some measurable level.