某男性患者，19岁，右上臂扪及一硬结，有轻压痛，结合影像学检查，最可能的诊断是

A:骨肉瘤 B:骨瘤 C:骨巨细胞瘤 D:骨软骨瘤 E:骨髓瘤

男性，32岁，超声示睾丸内可探及多个结节状低回声光团，边界清，CDFI：血流信号丰富。如图所示，考虑为（）。

A:睾丸脓肿 B:精原细胞瘤 C:睾丸炎 D:睾丸结核 E:睾丸恶性畸胎瘤

男性，37岁。左上尖牙外伤脱落再植固定后半年复诊。口腔检查：牙体无明显变色，松动Ⅰ度，叩诊（-），X线牙片示：牙周间隙消失。此牙再植后发生的愈合方式属于（）

A:牙周膜愈合 B:骨性粘连 C:炎症性牙根外吸收 D:炎症性牙根内吸收 E:牙脱落

某市政工程网络计划如下图，其关键线路是（）。

A:①→②→③→⑤→⑦→⑧ B:①→②→③→⑤→⑥→⑦→⑧ C:①→②→③→④→⑥→⑦→⑧ D:①→②→④→⑥→⑦→⑧

如图5-61所示，纯切应力状态的主应力σ1的值为（）。

B:2τ C:τ D:-τ

从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定的规律性（）

A:A B:B C:C D:D

B
Ellis Island is located in New York Harbor. Ellis Island is open daily year-round from9:30a. m. to 5:00p. m, with extended hours during summer. It is closed on December 25. There is no admission(入场) charge to Ellis Island; donations(捐款) are gratefully accepted.
At Your Fingertips
Park information (212) 363～7620
Emergencies (212) 363～3260
Ferryboat information (212) 269～5755
Lost and found (212) 363～7620
Dining, gift, & audio tour (212) 344～0996
Transportation
Stature of Liberty and Ellis Islan Ferry: Boats leave from Battery Park, Manhattan, and from Liberty State Park, New Jersey. They run about every 30 to 45 minutes beginning at 9:15a. m. (ferry schedule subject to change)
Hours: May vary; call the number above
Closed: December 25
Ferry fees: (Includes Liberty and Ellis Island) adults, $ 7; senior citizens, $ 6; children(age 3 to 17) $ 3. ( group rates are available for 25 or more adults)
Tickets & schedule information: (211) 269～5775

A:(212)344～0996 B:(212)363～7620 C:(212)363～3260 D:(212)269～5755

Which number would you call if your friends were suddenly ill

A:(212)344～0996 B:(212)363～7620 C:(212)363～3260 D:(212)269～5755