下面内容不属于软件危机的是( )。A．软件质量难以保证 B．软件的成本不断提高 C

根据我国《税收征管法》的规定，下列各项税款中，税务机关可以超过3年期限追征的有（）

A、纳税人偷税的税款

B、纳税人抗税的税款

C、纳税人骗税的税款

D、因纳税人计算错误未缴或者少缴的税款在10万元以上的

单采血小板终产品中血小板含量为（）

A.≥2.5×10¹²／袋

B.≥2.0×10¹²／袋

C.≥2.5×10¹¹/袋

D.≥2.0×10¹⁰/袋

E.≥25×10¹¹／袋

下列物质属第二信使的有

A．cAMP

B．cGMP

C．生长因子

D．转化因子

E．NO

患者，男，60岁，右侧胸痛2年，胸片示右下肺云雾状不均匀高密度阴影，界限不清，行肿块切除术。

术后病检镜下如图所示，肿瘤细胞沿肺泡壁，肺泡管壁生长，单层或多层排列，似呈腺样结构。该患者正确的诊断是（）

A.肺腺癌

B.细支气管肺泡癌

C.瘢痕癌

D.肺小细胞肺癌

E.肺鳞状细胞癌

Shigeo Kishiro recently purchased an American put option and Lendon Grey recently wrote an American call option on the same underlying stock, Tackel Sports (currently trading at $40 per share). Kishiro paid $2.75 for an exercise price of $38.00 and Grey received $3.75 for a strike price of $42. Assume that there are no transaction costs to exercise. At a stock price of $43:()

A. if Grey exercises, he will have gained a total of $4.75. 

B. the intrinsic put value is $0 and the put is at-the-money. 

C. the intrinsic call value is $1.