变形鲕
参考答案：
已沉积的鲕粒在胶结之前受底流冲刷及拖拉使之变形而形成的鲕粒。
—The manager has come back from his business trip. He is asking you for the report.
—Oh，my god ! I haven’t finished it yet. But he____ back at the company tomorrow.
A．was expected
B．will expect
C．expected
D．will be expected
假设二进制数A为8位，为获取其高5位的值可采用 (15) ；如要比较A和另一个二进制数B是否相等，则可采用 (16) 。
A．异或 B．逻辑与 C．逻辑非 D．逻辑或
