【单选题】Directions: Read the following passage carefully. The passage is followed by some questions or unfinished sentences. For each of them there are four choices marked A, B, C, and D. Choose the best an...
A.
Grammar is something you cannot escape from.
B.
Grammar is a kind of game that requires a lot of practice.
C.
Grammar is a set of rules that are used in a language.
D.
Grammar is a strategy that consists of rules.
【单选题】与糖尿病诊断和血糖控制是否达标无关的检测项目
【单选题】In some rural communities of emerging economies, people have begun to ___________.
A.
find digital devices simply indispensable
B.
communicate primarily by mobile phone
C.
distribute power with wires and wooden poles
D.
light their homes with stored solar energy
【单选题】制作上前牙金属烤瓷桥时桥体齦端形态最好选用()