【多选题】如果实例节点的NTP服务器地址配置正确,而且能够ping通,但是在chronyc sources指令中显示NTP服务器状态为“?”,该如何检查并操作。
A.
在chrony配置文件中,检查NTP服务器在当前网段是否打开allow的功能
【单选题】原油按其含硫量分类,当含硫量为0.5%~2.0%时,该原油属于()。
【单选题】在对钢筋加工工程检验批质量进行验收时,《检验批质量验收记录》中的“施工执行标准名称及编号”一栏应检查并填写()
【简答题】张宏购买衣服反馈尺码不符,申请退款;商家拒绝张宏退货申请,以下选项中,商家拒绝合理的有哪些? A.因张宏未提供有效的尺码不符图片,故拒绝张宏维权申请 B.商家反馈张宏已经洗过影响二次销售;故拒绝张宏维权申请 C.商家反馈张宏已经剪掉吊牌影响二次销售;故拒绝张宏维权申请
【单选题】Which statement of the following is NOT true?
A.
Engines of high-pressure were not known at Evans' times.
B.
Evans taught himself about steam engines.
C.
The low-pressure engine was expensive and complicated.
D.
The high-pressure engine was far lighter.
【单选题】The word 'optimum' underlined in Paragraph 1 most probably means ______.
【判断题】Stir-fry the chopped onions and the chopped garlic for 15 seconds. 将切碎的洋葱和捣碎的大蒜翻炒5秒钟。
【单选题】原油按其含硫量分类,当含硫量( )时属于高硫原油。