主页
学科
搜索
账户
常见问题
当前学科：军事高技术
题目：
单选
电子对抗是指敌对双方利用电子设备、武器、器材所进行的（）。
A . 电子斗争
B . 电子抵消
C . 信息对抗
D . 电磁斗争
答案：
<查看本题扣1积分>
查看答案
答案不对？请尝试站内搜索
推荐知识点:
起始磁导率
“昭君出塞”和亲的故事发生在汉代（）时期。
Today ,as in every other day of the year ,more than 3000 U.S. adlescents will smoke their first cigarette on their way to becoming regular smokers as adults. During their lifetime,it can be expected that of these 3000 about 23 will be murdered,30 will die in traffic accidents, and nearly 750 will be killed by a smoking-related disease. The number of deaths attributed to cigarette smoking outweithts all other factors, whether voluntary or involuntary, as a cause of death. Since the late 1970s, when daily smoking among high school seniors reached 30 precent , smoking rates among youth have declined . While the decline is impressive ,several important issues must be raised. First, in the past several years,smoking rates among youth have declined very little. Second,in the late 1970s ,smoking among male high school seniors exceeded that among female by nearly 10 percent . The statistic is reversing.Third ,several recent studies have indicate high school dropouts have excessively high smoking rates, as much as 75 percent . Finally, thouth significant declines in adolescent smoking have occurred in the past decade,no definite reasons for the decline exist. Within this context,the Naional Cancer Instiute (NCI) began its current effort to determine the most effecive measures to reduce smoking levesl among youth. By "dropout" the author means（）.
男性，25岁。车祸2小时后来院。左大腿中段外侧皮肤伤口长约2cm，深及皮下，未见外露的骨折端。X线检查示左股骨中上段横断骨折。正确的诊断是（）
宅基地、的自留地、的自留山属于公民个人所有。
（）的员工是中国北方也是天津市第一代产业工人。
集中式危险废物焚烧厂不允许建设在人口密集的（）区域。
各大媒体关于“鄱阳湖变草原”、“第一大湖遭遇水危机”的报道非常吸引眼球，但应在这句话前面加个时间定语。这其实是种稀松平常的现象——就像月有阴晴圆缺，时而像草原时而像大海，原本就是鄱阳湖所拥有的独特景观。这段文字意在说明：
简述尺神经的分布。
促进剂M在配方中常配以活化剂氧化锌和（）。