Given: What is the result?() B。 The code runs with no output.。 Compilation fails because of an error in line 12.。 Compilation fails because of an error in line 15.。 Compilation fails because of an error in line 18.。
简述城市社会问题的涵义、特点及成因。
对高血压合并糖尿病伴有微量蛋白尿的患者,首选的降压药是() β-受体阻断剂。 α-受体阻断剂。 血管紧张素转换酶抑制剂。 噻嗪类利尿剂E.钙通道阻滞剂。
Note the output of the following query; SQL> SELECT flashback_archieve_name, status FROM dba_flashback_archieve; FLASHBACK_ARCHIEVE_NAME STATUS FLA1 You executed the following command to enable Flashback Data Archive on the EXCHANGB_PATE table: ALTER TABLE exchange_rate FLASHBACK ARCHIEVE; What is the outcome of this command?() The table uses the default Flashback Data Archive.。 The Flashback Data Archive Is created In the SYSAUX tablespace.。 The Flashback Data Archive is created in the same tablespace where the tables are stored.。 The command generates an error because no flashback Data Archive name is specified and there is no default Flashback Data Achieve.。
坡口机不可以用于管道的() 切割。 修坡口。 关口找平。 对口。
一个创业者应该具备的素质有()