【单选题】—Which of those electronic dictionaries do you like most?—________.They are both expensive and of little use.
【简答题】3. Both coffee and
tea ____ (contain) caffeine.
【单选题】法兰西和雷温等人将权力划分分为强制权力、奖励权力、( )、专家权力和感召权力
【单选题】飞机液压系统包括()
A.
主液压系统、地面勤务系统、辅助液压系统、液压指示系统
【简答题】In the main hall we have both a and a .