患者，男，21岁，近半年来反复心悸、胸痛、劳力性呼吸困难，时有头晕或短暂神志丧失。体

根据短文内容，判断下列句子正误。正确的用“A”表示，不正确的用“B 表示。

     Class 9 had a great time on the school trip. They went to Blue Water Aquarium for the day. First they

 visited the Visitors' Center and watched a movie about sharks. Then they watched a dolphin show. After

 that, they went to the Outdoor Pool and saw a big octopus. After lunch, they went to the Gift Shop and

 bought lots of gifts. Finally, tired but happy, they took the bus back to school. At the end of the day, the

 science teacher was very happy because the class monitor cleaned the bus after the trip.

( ) 1. The students had a terrible school trip.

(     ) 2. They saw an octopus in the Outdoor Pool.

(     ) 3. They took the subway back to school.

(     ) 4. The students watched a movie about dolphins.

(     ) 5. The class monitor cleaned the bus.

当基差不变时，无论是卖出还是买入套期保值，均可以实现盈亏完全相抵，套期保值者得到完全保护。（）

下图中左图表示我国某地区林内与林外气温差值，右图是该地冬季情况示意图(阴影部分是林地,空白部分是均质裸地)。读图回答下列各题。

小题1:下列关于森林对气候调节作用的说法，正确的是：

A．林内气温总是低于林外气温

B．冬季林内外气温差值大

C．在夏季的调节作用最明显

D．林内昼夜温差比林外大小题2:以下叙述正确的是：

A．A点的气压低于C点                 B．A、E垂直方向上盛行上升气流

C．C、E之间的风向为西北风           D．A、C两点之间气流的性质为寒冷干燥

房地产置业投资，包括（ ）两部分

A．房地产购置和出售

B．流动资金投入和房地产出售

C．房地产开发和出售

D．房地产购置和流动资金投入

女性，21岁，高热伴牙龈肿痛1周，应用抗生素治疗无效。胸骨压痛明显，浅表淋巴结及肝脾不大。WBC3．8×10⁹／L，HCB54g／L，PI．T20×10⁹／L。肝功：LHD2500U/L。骨髓检查：原始细胞增多≥85％，POX阴性，PAS阴性，非特异性酯酶（+），能被NaF抑制，NAP正常

应采取的化疗方案是（）

A.大剂量阿糖胞苷强化治疗

B.全反式维A酸

C.VDLP方案

D.DA方案

E.化疗+放疗