衔接是指（）A.宫缩时胎头露出 * * 口，宫缩间歇时又缩回 B.宫口持续或间歇时胎头始

带负荷误合隔离开关（）将隔离开关拉开

A.可以

B.不能

C.随意

患者，男性，20岁。因发热、腹痛、腹泻2天而就诊。曾自测体温为38.9℃。发热时伴畏寒、寒战。腹泻8～10余次/日。初为稀便，后为黏液脓血便，里急后重感明显。3天前曾进食不洁食物。粪便常规检查WBC20～25个/HP，RBC10～15个/HP。诊断为细菌性痢疾。其全身症状主要与以下列哪一项有关（）。

A.痢疾杆菌的外毒素

B.痢疾杆菌的内毒素

C.霍乱肠毒素

D.肠毒素

E.神经毒素

患儿女，14岁，因肺炎需注射青霉素G，皮试结果呈强阳性。

提示给予青霉素G易出现（）。

A．不良反应

B．毒性反应

C．后遗反应

D．停药反应

E．变态反应

When Liam McGee departed as president of Bank of America in August, his explanation was surprisingly straight up. Rather than cloaking his exit in the usual vague excuses, he came right out and said he was leaving “to pursue my goal of running a company.” Broadcasting his ambition was “very much my decision,” McGee says. Within two weeks, he was talking for the first time with the board of Hartford Financial Services Group, which named him CEO and chairman on September 29.
McGee says leaving without a position lined up gave him time to reflect on what kind of company he wanted to run. It also sent a clear message to the outside world about his aspirations. And McGee isn’t alone. In recent weeks the No.2 executives at Avon and American Express quit with the explanation that they were looking for a CEO post. As boards scrutinize succession plans in response to shareholder pressure, executives who don’t get the nod also may wish to move on. A turbulent business environment also has senior managers cautious of letting vague pronouncements cloud their reputations.
As the first signs of recovery begin to take hold, deputy chiefs may be more willing to make the jump without a net. In the third quarter, CEO turnover was down 23% from a year ago as nervous boards stuck with the leaders they had, according to Liberum Research. As the economy picks up, opportunities will abound for aspiring leaders.
The decision to quit a senior position to look for a better one is unconventional. For years executives and headhunters have adhered to the rule that the most attractive CEO candidates are the ones who must be poached. Says Korn/Ferry senior partner Dennis Carey:” I can’t think of a single search I’ve done where a board has not instructed me to look at sitting CEOs first.”
Those who jumped without a job haven’t always landed in top positions quickly. Ellen Marram quit as chief of Tropicana a decade age, saying she wanted to be a CEO. It was a year before she became head of a tiny Internet-based commodities exchange. Robert Willumstad left Citigroup in 2005 with ambitions to be a CEO. He finally took that post at a major financial institution three years later.
Many recruiters say the old disgrace is fading for top performers. The financial crisis has made it more acceptable to be between jobs or to leave a bad one. “The traditional rule was it’s safer to stay where you are, but that’s been fundamentally inverted,” says one headhunter. “The people who’ve been hurt the worst are those who’ve stayed too long.”

Which of the following is the best title for the text

A．CEOs: Where to Go
B．CEOs: All the Way Up
C．Top Managers Jump without a Net
D．The Only Way Out for Top Performers

Being overweight increases a person’s risk of heart disease, stroke, and high blood pressure. Studies have shown that high-protein diets help people lose weight who have not been able to lose weight in any other way. Therefore, high-protein diets can be an important part of a healthy lifestyle.
Which of the following, if true, most undermines the conclusion expressed above about high-protein diets ？（）

A. High-protein diets have been linked to heightened rates of high cholesterol, stomach cancer, and kidney failure.

B. High-protein diets are easier than conventional diets for most dieters to follow because they allow dieters to eat filling foods like meat and eggs.

C. Although many dieters initially show rapid weight loss on high-protein diets, most of them regain the weight as soon as they go off the diet.

D. Society should be more understanding of overweight people, and should not pressure them to pursue extreme diets.

E. The high-protein diet fad has created a niche dieting industry that grosses over $2 billion per year.