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【判断题】
据记载,中国古代船只的桅杆是固定不动的。()
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】What does the comment 'This is logical.' in line 5 of the first paragraph (underlined) mean?
A.
There is no clear way to determine the extent of our ancestor's knowledge of plants.
B.
It is not surprising that early humans had a detailed knowledge of plants.
C.
It is reasonable to assume that our ancestors behaved very much like people in preindustrial societies.
D.
Human knowledge of plants is well organized and very detailed.
【单选题】在传统商务活动中,企业间交易主要使用的支付形式是
A.
信用卡
B.
现金
C.
电子钱包
D.
支票
【单选题】What does the professor mean when he says that folktales are communal?
A.
They vary little from one community to another.
B.
They serve to strengthen ties among individuals within a community.
C.
They relate important events in the history of a community.
D.
They can be adapted to meet the needs of a community.
【单选题】在ADC的扫描模式中,如果设置了DMA位,在每次EOC后,DMA控制器把规则组通道的转换数据传输到( )中
A.
SRAM
B.
Flash
C.
ADC_JDRx寄存器
D.
ADC_CR1
【单选题】What does the sentence '... meals in Gir are not necessarily frantic affair' (Para. 3) mean?
A.
The lions do not show intimacy among them any more.
B.
The lions may not need to fight for food.
C.
Food is not readily available in that region.
D.
Meals can be obtained only with great effort.
【单选题】在ADC的扫描模式中,如果设置了DMA位,在每次EOC后,DMA控制器把规则通的转换数据传输到( )中。
A.
SRAM
B.
Flash
C.
ADC_JDRx寄存器
D.
ADC_CR1寄存器
【简答题】编写STM32程序,通过ADC转换器采样电位器电压,并转换为电压值。 (a)ADC采样端口为?配置端口模式,写出一行代码? (b)ADC模式、扫描模式、连续转换模式、外部触发源、数据对齐方式、转换通道数量各写出一行配置代码 (c)ADC输入时钟配置,写出一行代码 (d)ADC使用规则转换模式,写出一行代码,对ADC规则采样通信与采样时间进行配置 (e)写出ADC校准的两行代码 (f)写出ADC开启...
【单选题】To what does 'this may well vary' refer?
A.
The expenditure on books
B.
The num.ber of books stolen
C.
The vigilance of the assistants
D.
The number of books stocked
【单选题】According to the passage, what does the word 'bravado' ( Paragraph 2, Line 5) probably mean?
A.
obvious dishonesty
B.
personal integrity
C.
false bravery
D.
good expectation
【单选题】Constance Hale says 'email has been an incredible boon to communication'.What Does she mean by this?
A.
People want to see the person they are talking to on the phone.
B.
email is easier than talking on the phone.
C.
People are using writing and reading more with email.
D.
email is not private enough.
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