急性溶血患者的尿液中易见（） A.胆红素结晶 B.胱氨酸结晶 C.酪氨酸结晶 D.含

读短文，在正确的句子前的括号里写“T”，错误的写“F”。

      Hello! I am Tom. In the morning, I get up at six o'clock. I wash my face and brush my teeth. Then

I eat breakfast with my family at six thirty. At six forty I go to school by bicycle. I am never late, but Lily

is sometimes late and Mary is always late. They always run to school.

( ) 1. Tom gets up at seven o'clock in the morning.

( ) 2. Tom doesn't brush his teeth.

( ) 3. Tom is never late for school.

( ) 4. Tom goes to school on foot.

( ) 5. Mary is always late.

女性，27岁，G2P1，停经60天， * * 流血10余天。尿妊娠试验阳性。

如诊断为葡萄胎，首选治疗方案为（）

A.化学治疗

B.手术切除治疗

C.放射治疗

D.清宫术

E.抗炎保守治疗

下列说法正确的是：                                                                              （   ）

A．光从光疏介质射人光密介质时也可能发生全反射

B．清晨人们刚刚看到太阳从地平线上升起时实际太阳还在地平线以下

C．在光的反射现象中光路是可逆的，但光的折射现象中光路是不可逆的

D．光从玻璃射人空气时折射率（1．513）的红光比折射率（1．532）的紫光发生全反射的临界角小

叙述体后拉肩的练功方法。