下列哪些不是二氧化碳对呼吸的调节途径（） A.直接刺激呼吸中枢 B.刺激颈动脉体和主

Zhang Zhaojie, a 13-year-old schoolboy in Xiamen enjoyed many snacks during Spring Festival. “I love chocolate and chips very much. They are high in sugar and fat. But I can’t help eating them,” Zhang said.

Recently, an online list of favorite snacks in China became popular. It said that peanuts, walnuts and chocolate are good for our health, and jelly, potato chips and lollipops(棒棒糖) are “bad”. Almost every kid on the planet loves snacks, and they seldom care how healthy they are. Although some snacks like chocolate and candy are found everywhere, others are unique(独特的) to a country or a culture.

In Japan, Matcha(抹茶) is a kind of green tea powder. It’s made from tea leaves and can be used with ice cream or cakes. In fact, Matcha originated in China but took off in Japan. Biscuits or cookies covered with chocolate are also a Japanese favorite.

Potato chips and French fries are very popular in the US. They are cheap but tasty. But they are high in calories and eating too much may make you fat. Popcorn(爆米花) is another typical snack. People eat it when they are watching sports games or visiting the amusement park. Most cinemas also sell Popcorn.

In the UK, many people sit down for snacks at around 4 p.m. every day. They call it “afternoon tea”. Traditional afternoon tea is biscuits and tea. People also have scones(烤饼) with jam and cream, which is probably the most classic English snack.

Countries   Snacks  What it is like

Japan   Matcha ★a kind of green tea powder made from 小题1:______

★often used with ice cream or cakes

Biscuits or cookies ★usually have 小题2:______ on them

The US 小题3:_______   ★cheap and tasty

Popcorn ★when watching sports games and 小题4:_______

★when visiting the amusement park

The UK  Biscuits and tea   ★the traditional afternoon tea

Scones ★eaten with小题5:________________

一个效价高、效能强的激动剂应该是：

A．高亲和力，高内在活性

B．高脂溶性，t1/2短

C．低亲和力，高内在活性

D．低亲和力，低内在活性

E．高亲和力，低内在活性

在媒体连续曝光食品安全事件后，大家都在问“我们还能吃什么？”．以下有关食品卫生与平衡膳食的叙述中，正确的是（　　）

A．检测出含“瘦肉精”的肉类食品，加工成火腿肠后即可食用

B．受污染的新鲜蔬菜经过腌制才可食用，还能降低癌症的患病率

C．蔬菜和水果难免喷洒过农药，我们应该用清水浸泡冲洗或削皮后食用

D．保证居民有均衡营养的前提是食品必须安全，因而食品的种类应尽可能少

工厂供电系统中，（）电流最大，因此它造成的危害也最为严重。

某企业对于自身内部因素和外部环境进行了系统分析，并采取了SWOT分析法。经过分析，该企业得出结论认为，自己基本上处于ST组合状态之下，企业根据这一结论确定了企业发展的总体战略。两年以后，企业根据市场环境的变化，准备采取密集型成长战略，但在具体采取哪个战略时，企业领导层发生了分歧，一种观点认为应当采取市场渗透战略，一种观点认为应当采取市场开发战略。为此，该企业进行了认真分析并召开多次专题研讨会，最终确定了适合企业的战略类型。若干年以后，企业领导层敏锐地觉察到目前企业所从事的产业属于未来不确定性的产业，而该企业在该产业中迅速成长，为避免继续实施原有战略导致企业管理失控和资源紧张的局面，企业领导层决定采取一种防御型的战略。

根据上述资料，回答下列问题：

该企业最后所采取的最适宜的防御型战略是（）。

A．无变战略

B．暂停战略

C．维持利润战略

D．扭转战略