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搜题
【单选题】
长期缺乏维生素B 1 引起的疾病是
A.
坏血病
B.
夜盲症
C.
缺铁性贫血
D.
脚气病
E.
佝偻病
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【单选题】You just purchased some new switches for your company’s network. Your junior technicians are doing most of the work connecting switches to workstations and to each other, and you don’t want to confuse...
A.
Connect the switch to a PC NIC and configure different speeds on the NIC by using the NIC driver. You’re okay if the switch links at all speeds. It’s called auto-MDIX.
B.
Connect two switches by using a crossover cable. If the connection works, the switch supports auto-negotiate.
C.
Connect the switch to a PC NIC and configure different speeds on the NIC by using the NIC driver. You’re okay if the switch links at all speeds. It’s called auto-negotiate.
D.
Connect two switches by using a patch cable. If the connection works, the switch supports auto-MDIX.
【简答题】风枪的气压决定于()A. 空压机压力  B.储气瓶气量  C.空气干燥剂排水量  D.油水分离器压力
【单选题】下列关于国债收益情况的说法中错误的是( )。
A.
相对于股票基金产品,投资国债的风险相对较小
B.
债券的收益主要来源于利息和价差收益
C.
价差收益一般只有凭证式国债可以获得的
D.
价差收益是债券投资者买卖债券形成价差收入或价差亏损
【简答题】计算机存储容量的单位为 。
【判断题】You don’t have to wait to be served if you only want one type of food and not several.
A.
正确
B.
错误
【多选题】用现代语音学的方法对音节进行分析,可以得出( )的内容。
A.
音节
B.
音素
C.
元音
D.
辅音
【单选题】A switch has been configured for three different VLANs: VLAN2, VLAN3, and VLAN4. A router has been added to provide communication between the VLANs. What minimum type of interface is necessary on the ...
A.
10Mbps Ethernet
B.
56Kbps Serial
C.
100Mbps Ethernet
D.
1Gbps Ethernet
【判断题】生物学混杂会造成品种的纯度、典型性、产量和品质降低。
A.
正确
B.
错误
【单选题】计算机存储容量的单位为 __ __
A.
字节(Byte)
B.
位(bit)
【简答题】将下列技术要求标注在图2.4-4上 1.φ35f8圆柱面应遵守包容要求。 2.大端为φ32的圆锥面对φ35f8圆柱轴线的圆跳动公差为0.015mm。 3.端面A的平面度公差为0.01mm。 4.面B对端面A的平行度公差为0.02mm。 5.φ35f8圆柱面的表面粗糙度参数Ra的最大值为0.4μm(未指明者皆采用默认的标准化值)。 6.面B的表面粗糙度参数Rz的上限值为6.3μm(未指明者皆采用默认...
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