更多"MAG焊通常可用粗氩，而不必用精氩。"的相关试题:
[判断题]埋弧自焊焊接时，厚板的焊接通常选用多层焊或多层多道焊。
[单项选择]手工电弧焊通常根据（）决定焊接电源种类。
A. 焊件厚度
B. 焊件的成分
C. 焊条类型
D. 焊件的结构
[单项选择]气电立焊通常情况下送丝速度越快，焊接效率越（）
A. 高
B. 低
C. 焊接效率与送丝速度无关
D. 不确定
[判断题]气电立焊通常采用直流反接，即焊丝接正极。
[判断题]气电立焊通常采用特制的药芯焊丝，采用CO2气体作保护气体。
[单项选择]钨极氩弧焊通常采用高频振荡器来帮助引弧。高频振荡器在引燃电弧后经（）即可切断。
A. 1～2s
B. 2～3s
C. 3～4s
D. 4～5s
[单项选择]熔化极气体保护电弧焊通常用的保护气体有：（）、氦气、CO2气或这些气体的混合气。
A. 氩气
B. CO3
C. 氧气
[单项选择]手工电弧焊通常应在焊缝起始点后面（）处引弧，酸性焊条的弧长约等于焊条直径，碱性焊条的弧长应为焊条直径的一半左右，进行正常焊接。
A. 10mm
B. 20mm
C. 30mm
[单项选择]下列哪种麻醉方法，术前不必用阿托品（）。
A. 乙醚吸入麻醉
B. 硫喷妥钠静麻醉
C. 椎管内麻醉
D. 臂丛神经阻滞麻醉
E. 氯胺酮麻醉
[判断题]四川峨眉玉液泉“神水”无色透明，无悬浮物，其味颇似汽水。用以和面烙饼、蒸馒头有既不用发酵，也不必用碱中和的奇特功效。
[单项选择]处理不锈钢厨具表面油渍不必用洗涤剂，只需洒少许（），再用旧布擦洗，就能光亮如新，这样还可节省清水冲洗。
A. 酒
B. 面粉
C. 食用醋
[单项选择]（）水无色透明，无悬浮物，其味颇似汽水，用以和面烙饼、蒸馒头有既不用发酵，也不必用碱中和的奇特功效。
A. 神泉
B. 灵泉
C. 圣泉
D. 玉泉
[单项选择]使用（）形式时，即使表达式中有Shell的特殊字符时，也不必用双引号将其括起来。
A. test表达式
B. [表达式]
C. let算术表达式
D. （（算术表达式））
[单项选择]The view of science fiction encouraged by pulp magazines, which may be wrong, is nevertheless ______.
A. popular
B. elegant
C. fashionable
D. deranged
[单项选择]You are installing a MAG Series device for access control using an SRX Series device as the firewall enforcer. The MAG Series device resides in the same security zone as users. However, the users reside in different subnets and use the SRX Series device as an IP gateway.Which statement is true?（）
A. You must configure a security policy on the SRX Series device to allow traffic to flow from the user devices to the MAG Series device.
B. No security policy is necessary on the SRX Series device to allow traffic to flow from the user devices to the MAG Series device.
C. You must configure host-inbound traffic on the SRX Series device to allow SSL traffic between the MAG Series device and the user devices.
D. You must configure host-inbound traffic on the SRX Series device to allow EAP traffic between the MAG Series device and the user devices.
[单项选择]You have multiple realms configured on a MAG Series device. A user is authenticating with a non- Junos Pulse Access Control Service client. The username does not contain a realm suffix.Which behavior will the user experience?（）
A. The user will not be able to log-in, as the Junos Pulse Access Control Service device cannot map the user to a realm when the realm value is empty.
B. The user will be mapped to all realms available to the user.
C. The Junos Pulse Access Control Service device displays a page where the user must choose from a list of realms.
D. The endpoint is assigned to the first realm in the list whose authentication server is a match with the endpoints software.
