问题
判断题
人体细胞与动物细胞基本结构一样，都有细胞膜、细胞质和细胞核。[ ]
答案
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搜题请搜索小程序“爱下问搜题”
人体细胞与动物细胞基本结构一样，都有细胞膜、细胞质和细胞核。[ ]
√
 Besides calling 911, here is what to do in some life-threatening emergencies when no oneis
First, you’ve got to acknowledge you’re in trouble. Stay where you can be seen clearly and remember to rest. Keeping a sense of humor helps too—it reduces stress and helps creative thinking. In a wide open area, make a colorful cross out of rocks to show your present position.
below the bony upside-down V of the ribs（肋骨）. Make a sudden push against the chair. If you still can’t breathe after six tries, call 911, even if you can’t talk. Write the word choking somewhere nearby, and leave the line open until help arrives.
or any cloth you can find, and push down on the wound until the bleeding stops. But if you put a band around your leg tightly, you’re going to close the vessels（血管） to the entire leg. In this way, you could lose your foot. Bear attack
bear in the eyes. If it does charge at you, stick out your chest, raise your arms, and spread your legs. Shout at the bear, to frighten it. If it’s going to attack, lie facedown, with your hands held firmly behind your neck. Play dead until you’re sure the bear is gone. 小题1:When you see a colorful cross made of rocks in the wilderness, you know .
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