第19题: [单项选择]They are always ready to ______ heavy responsibilities. A. take in B. take on C. put on D. put in 参考答案:B 答案解析:[解析] 四个选项的意思分别是take in接受,吸收,理解,呈现;take on承担,接纳;put on穿上,添上;put in放入,提交,进入。句意是,他们随时准备担起重任。所以正确答案是B选项,
A. Troublesome procedures. B. A long journey. C. Many difficulties. D. A lot of choices. 参考答案:A 答案解析:本题考查“对'red tape' 的理解”。上下文中提到"After cutting through what can be miles of red tape,parents often come
第22题: [单项选择]婴儿易发生溢乳的原因是 A. 婴儿常发生胃肠逆蠕动 B. 贲门肌发育差幽门括约肌发育良好 C. 婴儿胃容量小 D. 婴儿胃较垂直 E. 婴儿胃排空时间短 参考答案:B