耶克斯—多德森定律表明，在学习比较复杂或困难的内容时，学习效率会随着学习动机的增强而（ ）。

(单选题)______, he must have eaten more than before because he is ge (单选题)The ______ worked very well. Andy and Tim knew a lot about e (单选题)Nantong is such a wonderful city that they’ve decided to sta (单选题)—When is Jay’s concert?—It’s ______ seven o’clock ______ the (单选题)—Does your father go to work by ______ car every day?—No, he (单选题)According to this passage, if people live in the outskirts o (单选题)Where is London’s Chinatown now? (单选题)In the 1950s, Chinese immigrants came to London and worked a (单选题)Why did many Chinese immigrants come to London in the 1950s? (单选题)When did the first Chinese immigrants come to London?