【简答题】Directions : Choose one of the following words to complete the sentence and fill in the blanks with the corresponding letter. One word can be used only once. (A) unwrapped (B) useless (C) dis...
【判断题】欧洲进口车的VIN代码年代位(第10位)和工厂位(第11位)不是强制的。
【单选题】下列选项中,保险柜钥匙由( )严格保密。
【判断题】所谓引物就是同DNA互补的一小段RNA或DNA分子。
【单选题】SECTION 1 Vocabulary Selection In the section, there are 20 incomplete sentences. Below each sentence, there are 4 choices respectively marked by letters A,B,C and D. Choose the word or phrase which b...
A.
should have not happened
B.
would not have happened