进入初中后，我们已经长大了，对父母的要求也更高了，这是因为我们[ ] A．我们有

某同学将一小球竖直向上抛出，测得小球经过3s落回抛出点，由此可知小球在前2s内的位移是：

A．0

B．1.25m

C．10m

D．11.25m

下列支持ITP诊断的是（）

A.PAC3阴性

B.脾切除治疗有效

C.肝、脾大

D.骨髓中产板型巨核细胞增多

E.PAIg阴性

在诊断X线能量范围内，产生几率占 5%的是

A．相干散射

B．光核反应

C．光电效应

D．电子对效应

E．康普顿效应

骨盆骨折最严重的并发症是（）。

A.腹膜后血肿

B.神经损伤

C. * * 损伤

D.膀胱损伤

E.直肠损伤

Option investor D sells (writes, takes a SHORT position in) one of the following call options: Type of option: call option Underlying asset: 100 shares of Disney stock Exercise price: $40 per share Premium : $2.25 per share Expiration date : January The current market price of Disney stock is $39.02 per share. Investor D already owns 500 shares of Disney stock. Which of the following describes the amount of initial margin required for this transaction()

A. Since the call option is "in the money" investor D is not required to deposit initial margin. 

B. Since investor D owns at least 100 shares of Disney stock, he must deposit initial margin in the amount of 100% of the option premium. 

C. Since investor D owns at least 100 shares of Disney stock, no additional margin is required.