在SQL SELECT语句中用于实现排序短语是GROUP BY。
参考答案:对
读下列的短文,判断正(√)误(×)。
I'm an English girl. My name is Lucy. I have a new pen pal. He lives in China. His name is Ding Yi. He's
twelve. We're the same. He lives in the city of Shanghai. It's far from Beijing. His family lives in a house. He
speaks English very well. I like China. My family is coming to China soon. I'm going to visit Ding Yi. I think
we'll have a good time.
( ) 1. Lucy is twelve.
( ) 2. Ding Yi lives in Shanghai.
( ) 3. Ding Yi can't speak English.
( ) 4. Lucy's family is coming to China.
( ) 5. Ding Yi is going to visit Lucy.
美国贸易代表柯克(Ron Kirk)(2010年9月20日)呼吁继续对人民币升值施压,他指出,中国政府应该开放人民币汇率政策并让市场去主导人民币走势。下图反映的本质问题是
A.人民币和美元的价值相当
B.中国经济逐渐赶上美国经济
C.冷战后中美两国继续对抗
D.中美之间的经济差距缩小