题目内容

标准假彩色合成（如TM4、3、2合成）的卫星影像上大多数植被的颜色是（）

A. 绿色
B. 红色
C. 蓝色
D. 青色

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计算题：已知电压200伏，电阻是200殴阻，求电流是多少安培？（公式I=V/R）

材料相同、横截面面积相等的两拉杆，一为圆形截面，另一为方形截面，在相同拉力作用下，两拉杆横截面上的应力（）。

A. 相等
B. 圆杆大于方杆
C. 方杆大于圆杆
D. 长杆大于短杆

闻到苹果香味、看到苹果外观、触摸苹果光滑的果皮等引起的心理活动是()

A. 知觉
B. 思维
C. 感觉
D. 想象
E. 感受性

Your database has the SRV1 service configured for an application that runs on middle-tier application server. The application has multiple modules. You enable tracing at the service level by executing the following command: SQL > exec DBMS_MONITOR.SERV_MOD_ACT_TRACE_ENABLE (‘SRV1’); The possible outcome and actions to aggregate the trace files are as follows: 1. The command fails because a module name is not specified. 2. A trace file is created for each session that is running the SRV1 service. 3. An aggregated trace file is created for all the sessions that are running the SRV1 service. 4. The trace files may be aggregated by using the trcess utility. 5. The trace files be aggregated by using the tkprof utility. Identify the correct outcome and the step to aggregate by using tkprof utility?（）

A. 1
B. 2 and 4
C. 2 and 5
D. 3 and 4
E. 3 and 5