正确错误关系模型中的实体之间的联系有一对一、一对多、多对多。
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患者女性,48岁,因“后吸涕带血2个月”来诊。患者经常鼻塞、鼻腔干燥2年。提示夜间有时打鼾,但不会憋醒。亲属中有因后吸涕带血而查出鼻咽癌者。患者希望确诊。间接鼻咽镜:双侧咽隐窝对称,黏膜光滑,未见新生物。为明确诊断须进一步进行的检查有()
A. 颈部触诊
B. 鼻内镜
C. 活检行病理检查
D. 颈部淋巴结B型超声
E. 鼻咽部强化CT
F. 颅脑MRI平扫+增强
已知(DS)=2000H,有关的内存单元值为:(21000H)=00H,(21001H)=12H,(21200H)=00H,(21201H)=10H,(23200H)=20H,(23201H)=30H,(23400H)=40H,(23401H)=30H,(23600H)=60H,(23601H)=30H,符号COUNT的偏移地址为1200H。执行下列指令后,寄存器AX、BX、SI的值分别是多少?
PSA氢气回收率,是指从PSA装置获得的产品中氢气组分绝对量,占进入PSA装置原料气中氢气绝对量的百分比。
A. 正确
B. 错误
You are the administrator of a computer named Computer1 that runs Windows 7. Several users shareComputer1. The users plan to encrypt files on the computer. You need to ensure that you can access allencrypted files on the computer. What should you do first?()
At a command prompt, run Cipher.exe.
B. At a command prompt, run Certutil.exe.
C. From the local computer policy, modify the User Rights Assignment.
D. From User Accounts, run the Manage your file encryption certificates wizard.