下列有关苯醌类化合物的论述，正确的是 A．多以游离状态存在 B．可用水蒸气蒸馏法提取

能杀死全部细菌和芽胞的方法是

A．热压灭菌

B．流通蒸汽灭菌法

C．煮沸灭菌法

D．过滤除菌法

E．低温间歇灭菌法

藻酸钠弹性印模材料的胶结剂是（）。

A.硼砂粉

B.熟石膏粉

C.滑石粉

D.无水碳酸钠

E.二氧化硅粉

Beyond question, Clinton was supposed to close up, stay out of sight, and avoid second- guessing his wife’s boss. After his ego blustered into oncoming traffic during Hillary’s heated primary race (1) Obama, the nation suffered from yet another turn of Clinton fatigue.

(2) this week Bill Clinton showed an instinct for robust, inclusive leadership that the (3) White House occupant could make good use of right for the time being. With President Obama struggling to (4) the political damage from the Gulf oil spill, Clinton not only can’t help himself—he’s worth being listened.

The conventional-wisdom (5) on President Obama’s early reaction to the spill was (6) he didn’t emote enough. He didn’t feel the (7) of all those people in the crisis whose livelihood would be destroyed, whose clean waters and wildlife would be (8) in black gunk.

Clinton considers this is an unfair (9) but offers a different—and more pointed— lesson to his young successor. "I think we ought to (10) in the same boat for a while... Let’s just (11) the problem, and then we can hold everybody responsible and emote or not emote, " Clinton conversed (12) CNN Anchor Wolf Blitzer.

Obama’s first (13) after the oil spill was to "feel the blame" rather than "feel the pain, " which are pretty sarcastic words as it were. No one intends to let British Petroleum (BP) management (14) the hook—for dangerously cutting corners, and for a (15) safety record. However, the President’s (16) focus on scolding BP consumed (17) White House energy while the oil gushed.

Great leaders don’t rush to criticise; Instead they instinctively (18) solutions. Rudy Giuliani, who didn’t stop to blame (19) intelligence for letting it happen, stood out from New York mayor with a girlfriend problem to 9/11 hero when he took control of a crisis and instilled confidence that a ravaged city could (20) beyond a terrorist attack.

7（）

A.pressure

B.pain

C.shock

D.fear

高校房地产贷款采用信用方式的，应具备的条件之一是属教育部确认的“211工程”高校或省属重点高校。

造成碳黑洗涤塔液位低的因素有哪些？