我国经常应用的综合指数形式为（）。 A: 质量指标指数∑pq/∑pq B: 质量指标指数∑pq/∑pq C: 数量指标指数∑pq/∑pq D: 数量指标指数∑pq/∑pq E: 数量指标指数∑pq/∑pq（p为不变价）

The weight without any weight of packing is called ( ) A: Theoretical Weight B: Net Net Weight C: Conditioned Weight D: Legal Weight

已知点P(4,-1)，Q(1,3)，则︱PQ︱= A: 4 B: 5 C: 6 D: 7

In the experiment of experimental pulmonary edema in mice, lung<br/>coefficient refers to ( ) A: Weight (g) / lung weight (g) B: Lung weight (mg) / body weight (mg) C: Body weight (g) / lung weight (mg) D: Lung weight (mg) / body weight (g) E: Body weight (mg) / lung weight (g)

单相交流电路无功功率计算公式是（）。 A: Pq=UICosφ B: Pq=UISinφ C: Pq=UI D: Pq=IR

The three identifiers, weight, Weight and WEIGHT, are NOT equal in C language.

In the experiment of experimental pulmonary edema in mice, lung coefficient refers to ( ) A: Weight<br/>(g) / lung weight (g) B: Lung<br/>weight (mg) / body weight (mg) C: Body<br/>weight (g) / lung weight (mg) D: Lung<br/>weight (mg) / body weight (g) E: Body<br/>weight (mg) / lung weight (g)

已知点P(2,-1)、Q(a,4),并且|PQ|=√41,求a的值.

【单选题】The sum of zero fuel weight and fuel reserved is A. takeoff weight B. landing weight C. taxiing weight

Energy is usually measured ( ), and goods are sold ( ). A: by calories; by the weight B: by the calorie; by weight C: with calories; on weight D: in calories; by weight