[单选题]我国成功地爆炸了第一颗原子弹是在 (　　)
A. 1962年10月16日
B. 1963年10月16 日
C. 1964年10月16 日
D. 1965年10月16日

Invitations to very formal dinners may be engraved or written by hand in the third-person style. Less formally, they are written on notepaper or an informal note. The typeface is a matter of personal choice. For less formal occasion the attractive, decorated, preprinted invitations available at stationers and card stores are perfectly acceptable and practical.
Punctuation is used only when words requiting separation occur on the same line, and in such abbreviations as "R.S.V.P. ". The time is never given as nine-thirty, but as half after nine o’clock or half past nine o’ clock.
If the event is to be given at one address and the hostess lives at another, her address should appear below the R. S. V. P., assuming that she wishes replies to go to her home.
If the party is formal, the phrase "black tie" or "white tie" appears in the lower fight-hand comer of the invitation.
Invitations should be issued b