公安机关对开锁企业日常检查时,必须有()民警参加。
A、1人
B、1人以上
C、2人以上
D、三人以上
参考答案:D
治疗肺炎支原体肺炎热闭心神证,应首选
A.桑菊饮与青霉素
B.麻杏石甘汤与阿昔洛韦
C.清营汤与红霉素
D.生脉散与左氧氟沙星
E.竹叶石膏汤与麦迪霉素
Personal computers are used by one person at a time. The largest personal computer, or PC.S, can fit on a (1) . Some of these (2) have more than one microprocessor. (3) the primary processor, which is a general-purpose device, a PC may have one or more processors to (4) special kinds of work. Some machines, (5) , have maths processors, others have graphics processors to help process photographs and other illustrations. Still others have (6) processors.
Office workers also use PCS that are not (7) to a network. These machines are used for (8) tasks as word processing, performing financial calculations, and organizing and (9) bodies of information called databases. People use PCS at (10) for some of the same kinds of tasks. They use word processing programs for (11) communication, financial software for household budgets. Individuals also use their home computers to play (12) and to communicate (13) the internet.
Small, portable PCS are (14) with people who often work away from their desks. The (15) include laptop computers, which can be (16) on the lap; notebook computers, which are about the (17) of a loose leaf notebook; and palmtop, or handheld computers, which can be operated while (18) in the hand. Laptop and notebook computers have the same (19) as desktop computers. Palmtop computers have less power but still (20) some advanced capabilities. For example, they can process household financial data.
8()
A.these
B.such
C.different
D.same