简述沉积岩的原生构造特征。
参考答案:
沉积岩层面呈波状起伏,或残留波痕、雨痕、干裂、槽模、沟模等印模,或层内出现锯齿状缝合线或结核,均属于沉积岩的原生构造特征。
如图所示,两个质量相等的物体从同一高度沿倾角不同的两个光滑斜面由静止自由滑下,到达斜面底端,则两物体具有相同的物理量是
A.下滑过程中重力的冲量
B.下滑过程中合力的冲量
C.下滑过程中动量变化量的大小
D.刚到达底端时的动量
Tony Calaveccio, CFA, is the manager of the TrustCo Small Cap Venture Fund in Toronto. He places trades for the fund with Worldwide Brokerage. Worldwide is holding a conference in Amsterdam and has offered to pay for Calaveccio’s airfare, meals, and accommodations associated with his attendance of the conference. The conference concerns European small cap securities and the EASDAQ. He decides that he will accept their offer and attend the conference. In order to comply with the Code and Standards, he may:()
A. attend, but he must disclose the arrangement to his employer as a gift.
B. simply attend. Since the conference is directly related to his professional responsibilities, no further notification or permission is required.
C. attend, but he must disclose the arrangement as additional compensation to his employer in writing.