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【单选题】
已知焦点在y轴上的椭圆方程为 x 2 7-m + y 2 m-4 =1 ,则m的范围为(  )
A.
(4,7)
B.
(5.5,7)
C.
(7,+∞)
D.
(-∞,4)
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【单选题】有关脾包膜下血肿叙述错误的是
A.
被膜下破裂内出血征象不明显
B.
被膜下血肿也可被吸收
C.
被膜下血肿在微弱外力作用下可转化成真性破裂
D.
包膜下血肿可以不作处理
E.
此类血肿常在外伤后1~2周发生真性破裂
【单选题】What is an F5 tornado?
A.
the most common tornado
B.
a moderate tornado
C.
the strongest tornado
【单选题】下列有关炭疽的叙述错误的是
A.
炭疽的传染源是病畜和病人
B.
炭疽杆菌只通过与破损的皮肤接触进人人体内而感染
C.
可使用含有效氯2000~5000mg/L的消毒液浸泡病人使用的餐具30分钟以上
D.
病室空气可采用过氧乙酸3g/m3熏蒸1~2小时
E.
炭疽病人用过的治疗废弃物应焚烧处理
【简答题】阅读理解。 The mobile phone has been a part of our lives since the 1980s. It enables us to stay in contact with our family and friends at all times and in most areas. However, because of the quick acceptan...
【单选题】The mobile phone has influenced people’s life a lot since it .
A.
invents
B.
invented
C.
is invented
D.
was invented
【单选题】A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the outp...
A.
B.
管理员正在对路由器R1和R2的OSPF配置进行故障排除。 路由器无法在以太网链路上建立邻接关系。 该图显示了路由器R1和R2的show ip ospf interface e0命令的输出。 根据图中的信息,这个问题的原因是什么?
C.
The OSPF area is not configured properly.
D.
PF区域配置不正确。
E.
The priority on R1 should be set higher.
F.
的优先级应设置得更高。
G.
The cost on R1 should be set higher.
H.
的COST值应该设置得更高。
I.
The hello and dead timers are not configured properly.
J.
llo和dead定时器配置不正确。 K. A backup designated router needs to be added to the network. L. 将备份指定路由器添加到网络中。
【多选题】B2C is the most common type of business model and what most people think about when discussing building e-commerce businesses. What are some of the examples of B2C?
A.
Taobao
B.
Jingdong Shopping Mall
C.
Alibaba
D.
Amazon
E.
Dangdang.com
F.
e-bay
【单选题】下列叙述中错误的是
A.
某些长肌的起端有2个以上的头
B.
短肌多分布于躯干深层
C.
扁肌也称阔肌
D.
轮匝肌收缩时使孔裂开放
E.
可根据肌纤维排列方向对肌进行分类
【简答题】The mobile phone has been a part of our lives since the 1980s. It enables us to stay in contact with our family and friends at all times and in most areas. However, because of the quick acceptance and...
【判断题】汇总记账凭证账务处理程序的缺点之一是按每一贷方科目编制汇总转账凭证,不利千会计核算的日常分工。()
A.
正确
B.
错误
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