Malawi has class sizes of over 100 children.
举一反三
- How close parents are to their children has a strong on the character of the children.
- A full binary tree is a tree where________________.( ) A: each node has exactly one or two children. B: all the leaves are at the same level. C: each node has exactly two children D: each node has exactly zero or two children.
- How close parents are to their children has a strong（ ） on the character of the children. A: impact B: relevance C: affect D: dependence
- How close parents are to their children _____ a strong influence on the character of the children. ( ) A: may have B: has C: have D: having
- A<br/>village has 100 under five children. The coverage of measles<br/>vaccine is 60%. Following a measles case 26 children<br/>developed measles. The secondary attack rate is() A: 25% B: 40% C: 50% D: 65%