举一反三
- 4. ____ are the symbols of wealth and prosperity. A: Abundant rainwater B: The Silkwormand Cart Gods C: Culture activities D: Eating bitter herbs
- The "isomomorphism" of the gods and men in ancient Greek mythology reflects that the gods are _____. A: The Greek gods are secular. B: The Greek gods are supreme. C: The Greek gods are flawless. D: The Greek gods are humanized.
- The main categories of dashboard symbols/indicators include ____, ____, ____ and ____ . A: warning symbols B: safety symbols C: lighting symbols D: advanced feature symbols
- 运行表单(cart)的命令是______。 A: DO cart B: DO cart.scx C: DO FORM cart D: RUN FORM cart
- Given that a scoped attribute cart exists only in a user’s session， which two， taken independently， ensure the scoped attribute cart no longer exists？（） A: ${cart = null} B: C: D: E: cart F: G: ${cart}
内容
- 0
阅读下面代码： Book book = BookDB.getBook(id); HttpSession session = req.getSession(); List cart = (List) session.getAttribute("cart"); if (cart == null) { cart = new ArrayList(); session.setAttribute("cart", cart); } cart.add(book); 下面选项中，哪个是对上述代码功能的正确描述？（）
- 1
Given that a scoped attribute cart exist only in a user’s session， which two， taken independently， ensure the scoped attribute cart no longer exists？（） A: ${cart = null } B: <c：remove var=”cart” /> C: <c：remove var=”${cart}” /> D: <c：remove var=”cart” scope=”session” /> E: <c：remove scope=”session”>cart</c：remove> F: <c：remove var=”${cart}” scope=”session” /> G: <c：remove scope=”session”>${cart}</c：remove>
- 2
"Temple" is used to sacrifice ( ). A: Buddhist gods B: Taoist gods C: Ancestors or important persons D: Natural gods
- 3
Given that a scoped attribute cart exists only in a user’s session， which two，taken independently，ensurethe scoped attribute cart no longer exists？（） A: ${cart = null} B: <c：remove var="cart" /> C: <c：remove var="${cart}" /> D: <c：remove var="cart" scope="session" /> E: <c：remove scope="session">cart</c：remove>
- 4
Symbols can be divided into verbal symbols and Nonverbal symbol. （ ）