填空题What do fraternal twins have in common in terms of genes
单项选择题We have always had a misconception about______.
单项选择题What does the passage mainly talk about
单项选择题It can be inferred from the passage that Cher was ______.
单项选择题In the elocution lessons , the author was taught the skills of how to ______.
单项选择题How many credits should the man obtain to get a master’s degree
填空题slipped
单项选择题A.It will help detect all kinds of liars.B.It will most likely prove ineffective.C.It can help solve complex problems.D.It is a new weapon against terrorists.
单项选择题What is the most effective way to clean the air
单项选择题For what purpose does the pilot shut off all the engines