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Sun Yang gets 8-year ban Chinese Olympic and world swimming _____1_____ Sun Yang was handed an eight-year ban as the Court of Arbitration of Sport (CAS) upheld the World Anti-Doping Agency (WADA)'s appeal. Sun said he will appeal to the Swiss Federal Tribunal against the CAS decision. Sun refused to complete a doping test _____2_____ by the international testing company IDTM on Sept 4, 2018, saying the _______3________ and her assistants lacked sufficient _____4_____ and credentials. His case was later _____5_____ by swimming's world governing body FINA, who decided on Jan 3, 2019 that the swimmer was not guilty of anti-doping rule _____6_____ . WADA disagreed and appealed the decision. PM to marry pregnant partner British Prime Minister Boris Johnson and his girlfriend Carrie Symonds are expecting their first child and have announced their _____7_____ . "The prime minister and Miss Symonds are very pleased to announce their engagement and that they are _____8_____ a baby in the early summer," a spokesperson for the couple said on Saturday. The announcement means Johnson will become the first British prime minister to _______9_______ for nearly 200 years. Johnson, 55, had four children - - _____10_____ now - - with his ex-wife Marina Wheeler. 答案解释 1. arbitration n. 公断,仲裁 Both sides in the dispute have agreed to go to arbitration . 争执双方已同意提请仲裁。 2. anti-doping n./adj. 反兴奋剂 / 反兴奋剂的 dope v. to give sb a drug, often in their food or drink, in order to make them unconscious; to put a drug in food, etc. 给 ... 服麻醉剂;在(食物、饮料)中掺麻醉剂 3. credentials: documents such as letters that prove that you are who you claim to be, and can therefore be trusted 资格证书;证明书;证件
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【判断题】仅有点的一个投影不能确定点的空间位置。
A.
正确
B.
错误
【简答题】如图所示,依据A、B、C三种固体物质的溶解度曲线,回答下列问题: (1)A、B、C三种物质的溶解度随温度的升高而降低的是 。 (2)20℃时,A、B、C三种物质的溶解度的关系是 (用>、<或=表示)。 (3)50℃时,A物质饱和溶液中,溶质、溶剂、溶液的质量之比为 。 (4)将A物质的不饱和溶液变为饱和溶液可采用的方法是 (填两种方法)。 (5)50℃时,A、B、C三种物质的饱和溶液各100g,分...
【判断题】某步进电动机三相单三拍运行时步距角为3°,三相六拍运行时步距角为6°。( )
A.
正确
B.
错误
【判断题】点的一个投影不能确定点的空间位置。
A.
正确
B.
错误
【单选题】下列说法正确的是
A.
电对的标准电极电位越高,其氧化型的氧化能力越弱
B.
用电位法进行氧化还原滴定采用两只相同铂电极
C.
参比电极必须具备的条件是只对特定离子有响应
D.
玻璃电极就是氢离子选择电极
【单选题】某步进电动机三相单三拍运行时步距角为3°,三相双三拍运行时步距角为
A.
1.5°
B.
0.75°
C.
D.
【简答题】电对的电极电位越高,其氧化型的氧化能力越 ,电对的电极电位越低,其还原型的还原能力越 。
【单选题】某步进电动机三相单三拍运行时步距角为3°,三相双三拍运行时步距角为( )。[单选题]
A.
1.5°
B.
0.75°
C.
D.
【单选题】某步进电动机三相单三拍运行时步距角为3°,三相双三拍运行时步距角为()
A.
B.
C.
1.5°
D.
7.5°
【判断题】某步进电动机三相单三拍运行时步距角为3°,三相六拍运行时步距角为6°。[判断题]
A.
正确
B.
错误
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