急性化脓性骨髓炎一旦确诊,早期足量联合应用抗生素,持续用药()周以上
A.1
B.2
C.3
D.4
E.5
参考答案:C
阅读短文,判断正(T)误(F)。
Watch and Clock
Look at your watch. It has two hands, a long hand and a short hand. Some watches have three hands,
an hour hand, a minute hand and a second hand. A watch is small. We can put it in the pocket (口袋) or wear
it on the wrist (手腕). Some clocks are very big. We can see them from far away. These clocks are not in the
rooms. They are on very big houses.
( ) 1. We can wear a clock on the wrist.
( ) 2. We can put a watch in the pocket.
( ) 3. We can see clocks on very big houses.
( ) 4. What's " an hour hand " in Chinese? It's“时针”.
( ) 5. A clock is small, but a watch is big.
对路由器而言,下列哪一项功能是唯一的()
A.路由器捆绑了MAC地址和IP地址
B.路由器接受广播报文,并提供被请求的信息
C.路由器建立ARP表,描述所有与它们相连接的网络
D.路由器对ARP请求做出应答