【单选题】You should give up smoking because it is bad for you.
【单选题】To decide whether you can successfully transplant a tree yourself, you should ______.
A.
select your location carefully
B.
measure the ball of earth around the tree roots
C.
measure the diameter of the tree trunk
D.
cut off as many taproots as you can reach
【单选题】易燃气体是指温度在20℃、标准大气压101.3kPa时,爆炸下限≤13%,或燃烧范围不小于()个百分点的气体。
【判断题】十字花科蔬菜在烹调时应避免水煮或者炖制。
【单选题】指出下列选项中那一步交响曲是贝多芬创作的高峰和总结?
【单选题】As a reporter, you should first decide what events ____ before you make some interviews.
【单选题】______ you decide to take up, you should try to make it a success.
【单选题】__________ you are old enough to judge things, you should decide your path in life.