为什么在晴朗无风的夜间往往比阴雨的夜间多霜雾？

37-year-old teacher is hospitalized with complaints of weakness, incoordination, dizziness, and loss of balance. The diagnosis is multiple sclerosis (MS). Which of the following signs and symptoms, discovered during the history and physical assessment, is typical of MS ？（）

A．Diplopia, history of increased fatigue, and decreased or absent deep tendon reflexes.

B．Flexor spasm, clonus, and negative Babinski’s reflex.

C．Blurred vision, intention tremor, and urinary hesitancy.

D．Hyperactive abdominal reflexes and history of unsteady gait and episodic paresthesia in both legs.

下列各组城市中全部为全国历史文化名城的是( )。

A．南京、镇江、扬州

B．苏州、无锡、常州

C．徐州、淮安、连云港

D．宿迁、泰州、南通

绿色植物都能进行光合作用。光合作用的原料是________，产物是________，场所是________，条件是____。

按照对价格影响的差别，通货膨胀分为（）。

A.公开型通货膨胀

B.平衡的通货膨胀

C.隐蔽型通货膨胀

D.非平衡的通货膨胀

E.抑制型通货膨胀

临床上不易查出的继发龋下列可帮助诊断的方法是（）。

A.探诊

B.温度测验

C.X线

D.染色法

E.麻醉法