下面哪些参数属于天线的电气指标()
A、增益
B、驻波比
C、波束宽度
D、天线重量
参考答案:A, B, C
根据首字母提示写出单词。
1. True friends r______ us to show trust and loyalty(忠诚).
2. It won’t be easy to put the changes into e______.
3. My father swims twice a week to try and keep f______.
4. Jane wants to be an e______ in teaching small children when she grows up.
5. Mum helps his son out with an a______ of money when he lost his job.
胶囊剂系指()
A.将药物填装于空心硬质胶囊中的半固体制剂
B.密封于弹性软质胶囊中而制成的半固体制剂
C.将药物、明胶、水及甘油混合而成的固体制剂
D.将药物填装于空心硬质胶囊中的固体制剂或密封子弹性软质胶囊中而制成的固体制剂
E.将药物填装于空心硬质胶囊中的固体制剂或密封于弹性软质胶囊中而制成的半固体制剂