患者，女性，58岁，右下567缺失，余留牙良好，下颌舌侧牙槽骨呈斜坡状，用整铸支架可

汽车以每小时72千米的速度笔直地开向寂静的山谷，驾驶员按一声喇叭，4秒后听到回响，已知声音的速度是每秒340米，听到回响时汽车离山谷听距离是 _________ 米．

情景交际。填入适当的句子，补全对话。

A: Hello, May!

B: Hi, Peter! I haven't seen you for weeks. 1.________________________

A: I have been to Hawaii (夏威夷).

B: How was your journey?

A: Great! Hawaii is a beautiful place.

B: 2. ________________________

A: I went there by air.

B: 3. ________________________

A: Yes, I had lived there for 4 years before I came here.

B: 4. ________________________

A: I traveled with my friends.

B: 5. ________________________

A: I have been away for about eleven days.

B: What a wonderful journey!

A: Yes, it was!

下列哪组改变最符合溶血性黄疸

A．血清游离胆红素增加，尿胆原增加

B．血清游离胆红素增加，尿胆原减少

C．血清结合胆红素增加，尿胆原增加

D．血清结合胆红素增加，尿胆原减少

E．血清结合胆红素增加，尿胆红素增加

心肌灌注运动负荷试验中，出现下列哪些情况时，开始注射显像剂()

A．心率达到190-年龄

B．ECG的ST段下移>1mV

C．受检者心绞痛发作

D．血压异常升高或降低

E．出现严重的心律失常