光学合像水平仪与框式水平仪比较，测量精度和量程均高于框式水平仪。

女性，40岁。已确诊Graves病，以下哪项表现最具有诊断意义

A．食欲亢进，体重下降

B．心慌、多汗、手抖

C．突眼，瞬目减少

D．月经减少

E．弥漫性甲状腺肿大伴血管杂音及震颤

23岁，G1P0，41周妊娠临产，欲了解有无胎儿宫内缺氧，下列哪项辅助检查最有诊断价值（）

A．B超检查

B．胎动计数

C．胎儿电子监测

D．24h雌三醇测定

E．胎儿头皮血pH测定

在下列青春期龈炎的临床特征中，不正确的是（）

A.好发于前牙唇侧

B.临床上与药物性牙龈增生无明显区别

C.患者的发病年龄在青春期

D.病情不易复发

E.青春期过后，病情会自然缓解

根据法律的规定，提单具有（）功能或作用。

A.运输合同的证明

B.运输合同

C.货物收据

D.物权凭证

Left-handed persons suffer more frequently than do righthanded persons from certain immune disorders, such as allergies. Left-handers tend to have an advantage over the righthanded majority, however, on tasks controlled by the right hemisphere of the brain, and mathematical reasoning is ply under the influence of the right hemisphere in most people.
If the information above is true, it best supports which of the following hypotheses

A．Most people who suffer from allergies or other such immune disorders are left-handed rather than right-handed.

B．Most left-handed mathematicians suffer from some kind of allergy.

C．There are proportionally more left-handers among people whose ability to reason mathematically is above average than there are among people with poor mathematical reasoning ability.

D．If a left-handed person suffers from an allergy, that person will probably be good at mathematics.

E．(E) There are proportionally more people who suffer from immune disorders such as allergies than there are people who are left-handed or people whose mathematical reasoning ability is unusually good.